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1.
Ann Behav Med ; 58(6): 457-462, 2024 May 23.
Artículo en Inglés | MEDLINE | ID: mdl-38591715

RESUMEN

BACKGROUND: Weight stigma is widespread, but the existing literature on its harmful consequences remains largely limited to lab-based experiments and large-scale longitudinal designs. PURPOSE: The purpose of this study was to understand how weight stigma unfolds in everyday life, and whether it predicts increased eating behavior. METHODS: In this event-contingent ecological momentary assessment study, 91 participants reported every time they experienced weight stigma and documented whether they ate, how much they ate, and what they ate. These reports were compared against a timepoint when they did not experience stigma. RESULTS: Participants reported a wide variety of stigmatizing events from a variety of sources, with the most common ones being the self, strangers, the media, and family. Multilevel models showed that participants were no more likely to eat post-stigma (vs. the comparison point), but if they did eat, they ate more servings of food (on average consuming 1.45 more servings, or 45% more). Moderation analyses indicated that this effect was amplified for men versus women. CONCLUSION: Experiencing weight stigma appears to beget behavioral changes, potentially driving future weight gain, placing individuals at ever more risk for further stigmatization.


This study looked at how weight stigma in everyday life impacts eating. People reported on episodes of weight stigma and their eating in the next 30 min. Weight stigma came from many different places, including family, strangers, media, and even themselves. Even though people did not necessarily eat more after weight stigma episodes, if they did eat, they ate significantly more food­about 45% more. This relationship was stronger in men than in women. The study also explored whether different kinds of people react differently to weight stigma. Weight stigma experiences led to even more food eaten among people who tended to have high buy-in about negative stereotypes of heavier people, as well as people who thought weight was an important part of their identity. The opposite was seen among people who worried the most about experiencing weight stigma in the future. These findings suggest that experiencing weight stigma may not always prompt people to eat immediately, but when they do eat, they tend to eat more, challenging the idea that weight stigma motivates people to eat less.


Asunto(s)
Evaluación Ecológica Momentánea , Conducta Alimentaria , Estigma Social , Humanos , Femenino , Masculino , Conducta Alimentaria/psicología , Adulto , Adulto Joven , Peso Corporal , Persona de Mediana Edad , Adolescente
2.
Appetite ; 201: 107573, 2024 Jun 20.
Artículo en Inglés | MEDLINE | ID: mdl-38908408

RESUMEN

Higher weight individuals often face significant weight stigma. According to the Cyclic Obesity/Weight-Based Stigma (COBWEBS) model, weight stigma operates as a stressor that increases the stress hormone cortisol and promotes comfort eating, thus resulting in weight gain. Such weight gain is harmful as it exposes individuals to further stigmatization. Thus far, no study has yet tested the mechanistic pathways of the COBWEBS model and prospective longitudinal studies are severely lacking. To fill this gap, the current study tested the biobehavioral pathways of the COBWEBS model using a 4-wave yearlong longitudinal study comprising 348 higher weight individuals. Using a structural equation modeling framework, we tested three cross lagged panel models for the putative mediator, comfort eating. The models examined either synchronous and/or lagged effects across weight stigma, perceived stress, comfort eating, weight, and future weight stigma. The best fitting model revealed significant associations between baseline weight stigma, perceived stress, and comfort eating within the same month. However, comfort eating did not significantly predict weight four months later. Weight status and baseline weight stigma both predicted future weight stigma as expected. Additionally, a separate path model with hair cortisol found that weight stigma predicted perceived stress four months later, but stress did not predict aggregate cortisol levels from months 10 and 11. Hair cortisol also did not predict later weight. This preliminary work lays the foundation for identifying modifiable targets of weight stigma, thereby offering potential avenues to reduce weight stigma's harm on higher weight individuals.

3.
Appetite ; 197: 107294, 2024 Jun 01.
Artículo en Inglés | MEDLINE | ID: mdl-38479471

RESUMEN

Food insecurity is highly prevalent and linked to poorer diet and worse metabolic outcomes. Food insecurity can be stressful, and could elicit chronic psychological and physiological stress. In this study, we tested whether stress could be used to identify those at highest risk for worse diet and metabolic measures from food insecurity. Specifically, we hypothesized that cortisol (a physiological marker of stress) and perceived psychological stress would amplify the link between food insecurity and hyperpalatable food intake as well as metabolic measures. In a sample of 624 Black and White women aged 36-43 who participated in the NHLBI Growth and Health Study's midlife assessment, we assessed associations between food insecurity with hyperpalatable food intake (high fat + high sodium foods; high fat + high sugar foods; and high carbohydrate + high sodium foods), and metabolic measures (fasting glucose, insulin resistance, and waist circumference). We found that food insecurity was associated with higher levels of perceived stress (R2 = 0.09), and greater intake of high fat + high sugar (hyperpalatable) foods (R2 = 0.03). In those with higher cumulative cortisol (as indexed by hair cortisol), food insecurity was associated with higher levels of fasting glucose. Neither cortisol nor perceived stress moderated any other relationships, and neither variable functioned as a mediator in sensitivity analyses. Given these largely null findings, further research is needed to understand the role stress plays in the chronic health burdens of food insecurity.


Asunto(s)
Abastecimiento de Alimentos , Hidrocortisona , Humanos , Femenino , Hidrocortisona/metabolismo , Dieta , Inseguridad Alimentaria , Glucosa , Azúcares , Sodio , Estrés Psicológico/psicología
4.
Psychosom Med ; 85(6): 466-473, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37249269

RESUMEN

ABSTRACT: The American Psychosomatic Society (APS) is an international professional society that aims to advance the scientific study of biological, behavioral, and social factors in health among educators, clinicians, and researchers. In pledging to be an antiracist organization in 2020, APS formed the Antiracism Task Force to identify different manifestations of systemic racism within the society and to make recommendations for building a more inclusive and equitable professional organization. The goal of this paper was to be maximally transparent to membership about our activities and lessons learned, as well as offer a case study to other organizations striving toward antiracism. We describe the inaugural year of activities of the APS Antiracism Task Force, which included proposing amendments to the society's bylaws, collecting data on member attitudes toward diversity, and consulting on other member efforts to implement antiracism activities (e.g., increasing access to early career awards). In addition to reflecting on task force and society-specific factors that were facilitative in our first year, we describe future plans and potential challenges we may face as we support sustained commitment to APS's antiracism efforts.


Asunto(s)
Antiracismo , Racismo , Estados Unidos , Humanos , Sociedades
5.
Psychosom Med ; 85(4): 298-307, 2023 05 01.
Artículo en Inglés | MEDLINE | ID: mdl-37010234

RESUMEN

ABSTRACT: Open Science practices include some combination of registering and publishing study protocols (including hypotheses, primary and secondary outcome variables, and analysis plans) and making available preprints of manuscripts, study materials, de-identified data sets, and analytic codes. This statement from the Behavioral Medicine Research Council (BMRC) provides an overview of these methods, including preregistration; registered reports; preprints; and open research. We focus on rationales for engaging in Open Science and how to address shortcomings and possible objections. Additional resources for researchers are provided. Research on Open Science largely supports positive consequences for the reproducibility and reliability of empirical science. There is no solution that will encompass all Open Science needs in health psychology and behavioral medicine's diverse research products and outlets, but the BMRC supports increased use of Open Science practices where possible.


Asunto(s)
Medicina de la Conducta , Humanos , Reproducibilidad de los Resultados , Investigación Conductal , Edición
6.
Psychol Med ; 53(13): 6171-6182, 2023 10.
Artículo en Inglés | MEDLINE | ID: mdl-36457292

RESUMEN

BACKGROUND: Although maternal stressor exposure has been associated with shorter telomere length (TL) in offspring, this literature is based largely on White samples. Furthermore, timing of maternal stressors has rarely been examined. Here, we examined how maternal stressors occurring during adolescence, pregnancy, and across the lifespan related to child TL in Black and White mothers. METHOD: Mothers (112 Black; 110 White; Mage = 39) and their youngest offspring (n = 222; Mage = 8) were part of a larger prospective cohort study, wherein mothers reported their stressors during adolescence (assessed twice during adolescence for the past year), pregnancy (assessed in midlife for most recent pregnancy), and across their lifespan (assessed in midlife). Mother and child provided saliva for TL measurement. Multiple linear regression models examined the interaction of maternal stressor exposure and race in relation to child TL, controlling for maternal TL and child gender and age. Race-stratified analyses were also conducted. RESULTS: Neither maternal adolescence nor lifespan stressors interacted with race in relation to child TL. In contrast, greater maternal pregnancy stressors were associated with shorter child TL, but this effect was present for children of White but not Black mothers. Moreover, this effect was significant for financial but not social pregnancy stressors. Race-stratified models revealed that greater financial pregnancy stressors predicted shorter telomeres in offspring of White, but not Black mothers. CONCLUSIONS: Race and maternal stressors interact and are related to biological aging across generations, but these effects are specific to certain races, stressors, and exposure time periods.


Asunto(s)
Madres , Acortamiento del Telómero , Adolescente , Adulto , Niño , Femenino , Humanos , Embarazo , Exposición Materna , Madres/psicología , Estudios Prospectivos , Telómero/fisiología , Acortamiento del Telómero/fisiología , Población Blanca/psicología , Relaciones Intergeneracionales/etnología , Negro o Afroamericano/psicología , Adulto Joven , Persona de Mediana Edad
7.
Ann Behav Med ; 57(5): 357-367, 2023 04 22.
Artículo en Inglés | MEDLINE | ID: mdl-37010262

RESUMEN

Open Science practices include some combination of registering and publishing study protocols (including hypotheses, primary and secondary outcome variables, and analysis plans) and making available preprints of manuscripts, study materials, de-identified data sets, and analytic codes. This statement from the Behavioral Medicine Research Council (BMRC) provides an overview of these methods, including preregistration; registered reports; preprints; and open research. We focus on rationales for engaging in Open Science and how to address shortcomings and possible objections. Additional resources for researchers are provided. Research on Open Science largely supports positive consequences for the reproducibility and reliability of empirical science. There is no solution that will encompass all Open Science needs in health psychology and behavioral medicine's diverse research products and outlets, but the BMRC supports increased use of Open Science practices where possible.


Asunto(s)
Medicina de la Conducta , Humanos , Reproducibilidad de los Resultados , Edición , Investigación Conductal
8.
J Urban Health ; 100(2): 327-340, 2023 04.
Artículo en Inglés | MEDLINE | ID: mdl-36826734

RESUMEN

Adverse childhood experiences (ACEs) have been associated with poor mental health outcomes in adulthood. Childhood maltreatment is related to both depressive and anxiety symptoms. Our objective was to investigate these associations among low-income, mostly Black and Latino men who have sex with men (MSM), as these may be a particularly vulnerable population group. Data come from a longitudinal study of MSM with varied substance use behaviors (n = 321) collected between August 2014 and April 2022. Cumulative, childhood maltreatment ACEs, and the single ACE of childhood sexual abuse were investigated as potential predictors of self-reported depressive and anxiety symptoms in mixed-effects logistic and ordinal regression models. There was no evidence of a dose-response relationship between the number of ACEs and the predicted probability of depressive and anxiety symptoms. Compared to MSM reporting fewer than five ACEs, those with five or more ACEs had approximately double the odds ratio of reporting depressive (OR = 1.93; 95% CI: 1.04-3.60) and anxiety symptoms (OR = 2.21; 95% CI: 1.05-4.68). The dimension of childhood maltreatment had a more robust prediction of depressive symptoms than the dimension of household dysfunction across all models. The association between childhood sexual abuse history and depressive symptoms remained after adjustment for the other nine ACEs (OR = 2.27; 95% CI: 1.11-4.68). The ordinal logistic model suggested that cumulative ACEs more than triple the odds of being in a higher anxiety category (OR = 3.12; 95% CI: 1.58-6.14), with associations reported for childhood maltreatment ACEs (OR = 1.31; 95% CI: 1.06-1.66) and childhood sexual abuse (OR = 1.93; 95% CI: 0.89-4.21). Childhood maltreatment ACEs, particularly childhood sexual abuse, are salient predictors of depressive and anxiety symptoms among adult urban MSM. Mitigating the impact of childhood maltreatment requires understanding the additional burden of social distress often faced by MSM throughout the life course.


Asunto(s)
Maltrato a los Niños , Minorías Sexuales y de Género , Adulto , Masculino , Humanos , Niño , Estudios Longitudinales , Homosexualidad Masculina , Los Angeles/epidemiología , Ansiedad/epidemiología , Depresión/epidemiología
9.
Int J Behav Med ; 30(2): 297-303, 2023 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-35486351

RESUMEN

BACKGROUND: Experiencing weight stigma during pregnancy is detrimental to psychosocial health outcomes, including increasing maternal stress and undermining engagement in health behaviors. Guided by a recent socioecological framework, close interpersonal relationships are integral in pregnancy to facilitate healthy behaviors and protect maternal mental health, but they may also be sources that project weight stigma. The purpose of this study was to characterize weight stigma experienced during pregnancy and postpartum from close relationships including partners, immediate family, extended family, and friends. METHOD: Women who were pregnant or up to 1 year postpartum completed a survey that assessed sources of weight stigma since becoming pregnant. A thematic analysis was performed to code open-ended responses to understand the lived experiences of pregnancy-related weight stigma experienced from close relations. RESULTS: Of the 501 women who completed the online survey, 157 indicated experiencing weight stigma from close relations. Average frequency of weight stigma from close relations was 1.83 ("less than once a month" to "a few times a month"). Weight-stigmatizing examples from close relations during pregnancy included negative assumptions about maternal or fetal health and maternal lifestyle behaviors based on weight gain; comparing women to pregnant body ideals; and making comments that resulted in women judging themselves poorly as a pregnant individual or mother. CONCLUSIONS: Close relationships can be sources of pregnancy-related weight stigma. This may not only increase risk for adverse stigma-related consequences, but also could cut off the important benefits of maternal social support resulting in poor mental health outcomes and health behaviors.


Asunto(s)
Madres , Prejuicio de Peso , Embarazo , Femenino , Humanos , Madres/psicología , Aumento de Peso , Atención Prenatal , Estigma Social
10.
Psychosom Med ; 84(3): 297-305, 2022 04 01.
Artículo en Inglés | MEDLINE | ID: mdl-35067653

RESUMEN

OBJECTIVE: Although exposure to abuse in early life predicts earlier pubertal timing, especially for girls, it is unclear if this association generalizes to nonabuse stressors. In addition, the impact of race on the stress-maturation association remains unknown. To address these issues, we examined whether race moderates the effects of early adversity on pubertal timing and tempo using a longitudinal study design. METHODS: In a cohort of 9- and 10-year-old Black and White girls, pubertal (areolar and pubic hair) maturation was assessed annually for 7 years. In adulthood, 368 participants (186 Black, 182 White) reported on abuse and nonabuse stressors they experienced from ages 0 to 12 years. RESULTS: Early life abuse was associated with earlier pubertal timing, as indexed by younger age at menarche (b = -0.22, p = .005, 95% confidence interval [CI] = -0.39 to -0.06) and greater pubic hair development (b = 0.11, p = .003, 95% CI = 0.04 to 0.18), in addition to slower pubertal tempo, as indexed by slower rate of pubic hair (b = -0.03, p < .001, 95% CI = -0.05 to -0.01) and areolar (b = -0.02, p = .02, 95% CI = -0.03 to -0.003) development. These associations were not found for nonabuse adversity. Black girls with early life abuse had greater pubic hair development (b = 0.23, p < .001, 95% CI = 0.12 to 0.35) and were slower in pubic hair tempo (b = -0.07, p < .001, 95% CI = -0.09 to -0.04) than their White counterparts. CONCLUSIONS: Screening for early life abuse may help address health disparities related to earlier pubertal timing.


Asunto(s)
Experiencias Adversas de la Infancia , Adulto , Niño , Preescolar , Estudios de Cohortes , Femenino , Humanos , Lactante , Recién Nacido , Estudios Longitudinales , Menarquia , Pubertad
11.
Appetite ; 169: 105868, 2022 02 01.
Artículo en Inglés | MEDLINE | ID: mdl-34915102

RESUMEN

Increased consumption of highly processed foods may result in lower diet quality, and low diet quality is associated with elevated risk of cardiovascular disease, type 2 diabetes, and cancer. One mechanism driving highly processed food intake is the expectation that eating these foods will improve emotional experiences, particularly in individuals with elevated "highly processed food addiction" symptoms. However, experimental findings about the emotional experiences following highly processed food intake are mixed. Furthermore, prior studies have generally failed to capture the potentially prolonged emotional effects of eating highly processed foods and not tested for individual differences. The present study was a preregistered archival data analysis of an ambulatory electronic diary study that captured real-life emotions following highly processed food intake. Multilevel modeling was used to predict the effects of highly processed food intake on subsequent positive and negative emotions immediately, 1 h, and 3 h after consumption. Intake of sweet high-fat foods, fast foods, and non-alcoholic sugary drinks was associated with greater positive emotions immediately after eating, and sweet high-fat food intake remained associated with greater positive emotions 1 h later. Sweet high-fat food and non-alcoholic sugary drink intake were associated with fewer negative emotions 1 h after consumption, and the negative association between non-alcoholic sugary drink intake and negative emotions was stronger for those with elevated highly processed food addiction symptoms. Overall, results suggest that highly processed food intake results in small alterations in positive and negative emotions immediately and up to 1 h after intake; however, these do not persist through 3 h after intake. The ability of highly processed foods to briefly alter emotions may be key to their reinforcing nature.


Asunto(s)
Diabetes Mellitus Tipo 2 , Dieta , Ingestión de Alimentos/psicología , Emociones , Ingestión de Energía , Comida Rápida/efectos adversos , Humanos
12.
Appetite ; 176: 106140, 2022 09 01.
Artículo en Inglés | MEDLINE | ID: mdl-35718313

RESUMEN

Low-income Black and Latinx individuals are disproportionately vulnerable to chronic stress and metabolic disease. Evidence suggests that these populations engage in elevated levels of comfort eating (i.e., eating comforting food to alleviate stress), which can harm diet quality. For this reason, many interventions discourage comfort eating. However, if comfort eating does indeed buffer stress, it may be a protective health behavior, particularly if healthy foods (e.g., strawberries) buffer stress as effectively as traditional unhealthy comfort foods (e.g., brownies). By choosing healthy foods, people may be able to simultaneously improve their nutrition and reduce their stress levels, both of which have the potential to reduce health disparities among chronically stressed populations. The present study tested the efficacy of healthy and unhealthy comfort eating for improving psychophysiological stress recovery. A sample of low-income Black and Latinx individuals (N = 129) were randomly assigned to consume a healthy food (e.g., grapes), unhealthy comfort food (e.g., chips), or no food after exposure to a laboratory stressor. Throughout, we measured participants' psychophysiological stress responses, including self-reported stress, rumination, autonomic nervous system activation (i.e., electrodermal activity (EDA), heart rate variability (HRV)) and neuroendocrine responses (i.e., salivary cortisol). We compared participants' stress recovery trajectories by condition and found no significant group differences (p = 0.12 for self-reported stress; p = 0.92 for EDA; p = 0.22 for HRV, p = 1.00 for cortisol). Participants in all conditions showed decreases in self-reported stress and in cortisol post-stressor (ps < 0.01), but rates of decline did not differ by condition (i.e., healthy or unhealthy comfort food, brief no-food waiting period). Although null, these results are important because they challenge the widely-held assumption that comfort foods help people decrease stress.


Asunto(s)
Dieta , Hidrocortisona , Adulto , Ingestión de Alimentos , Conducta Alimentaria , Alimentos , Preferencias Alimentarias , Conductas Relacionadas con la Salud , Humanos
13.
Eat Weight Disord ; 27(4): 1249-1267, 2022 May.
Artículo en Inglés | MEDLINE | ID: mdl-34476763

RESUMEN

In addition to its immediate negative consequences, childhood sexual abuse is associated with lifelong deleterious mental and physical health outcomes. This review employs a biopsychosocial perspective to better understand pathways from childhood sexual abuse to eating disorders, food and drug addictions, and obesity across the life course. Guided by an updated conceptual model, this review delineates how the biological embedding of childhood sexual abuse triggers a cascade of interrelated conditions that often result in failed attempts at weight suppression and eventually obesity. Such biological embedding involves pathways such as inflammation, allostatic load, reward sensitivity, activation of the hypothalamic-pituitary-adrenal axis, epigenetics, and structural and functional changes in the brain. These pathways are in turn theorized to lead to food addiction, substance use disorder, and eating disorders-each with potential pathways toward obesity over time. Predisposing factors to childhood sexual abuse including gender, culture, and age are discussed. This model calls into question the longstanding "protective measure" theory that purports individuals exposed to sexual abuse will deliberately or subconsciously gain weight in attempt to prevent future victimization. A more comprehensive understanding of the mechanisms by which childhood sexual abuse becomes biologically embedded may help clinicians and survivors normalize and/or address disordered eating and weight-related outcomes, as well as identify intervention strategies.Level of evidence: Level V: opinions of respected authorities, based on descriptive studies, narrative reviews, clinical experience, or reports of expert committees.


Asunto(s)
Abuso Sexual Infantil , Trastornos de Alimentación y de la Ingestión de Alimentos , Delitos Sexuales , Trastornos Relacionados con Sustancias , Niño , Abuso Sexual Infantil/psicología , Humanos , Sistema Hipotálamo-Hipofisario , Obesidad/psicología , Sistema Hipófiso-Suprarrenal , Trastornos Relacionados con Sustancias/psicología
14.
Int J Obes (Lond) ; 45(7): 1499-1509, 2021 07.
Artículo en Inglés | MEDLINE | ID: mdl-33934109

RESUMEN

BACKGROUND: Weight stigma is pervasive across the U.S. and is associated with poor health outcomes including all-cause mortality. One potential reason that weight stigma may be detrimental to health is that it begets poorer health behaviors. Therefore, the present study tested for associations between weight stigma and four health behaviors (i.e., eating behavior, alcohol use, sleep disturbance, and physical activity), while controlling for BMI and other potential confounds. SUBJECTS/METHODS: Participants (N = 2022) in the U.S. were recruited for the Eating in America Study using a Qualtrics panel between December 2019 and January 2020 and were census-matched according to national quotas for age, gender, income, race/ethnicity, and census region. Participants completed questionnaires about weight stigma, health behaviors, demographics, and anthropometric measurements. The current study employed a two-stage investigation: exploratory analyses were first performed on a random sample of the dataset (n = 438), then the remaining unexamined data were used to conduct confirmatory analyses that were preregistered on the Open Science Framework. RESULTS: Controlling for BMI, weight stigma was significantly associated with greater disordered eating (b = 0.34, 95% CI [0.31, 0.38], p < 0.001), comfort eating (b = 0.32, 95% CI [0.25, 0.39], p < 0.001), sleep disturbance (b = 0.27, 95% CI [0.20, 0.33], p < 0.001), and alcohol use (b = 0.30, 95% CI [0.11, 0.49], p = 0.002), but not lower physical activity (b = -0.04, 95% CI [-0.13, 0.05], p = 0.402) for individuals across the weight spectrum. BMI and perceived weight status significantly moderated the effects of weight stigma on disordered eating and alcohol use. No gender differences were found. These confirmatory analyses partially replicated the exploratory stage 1 findings. CONCLUSIONS: This study provides preliminary evidence that weight stigma is linked to several poor health behaviors, which may impact physical health.


Asunto(s)
Conductas Relacionadas con la Salud , Obesidad/epidemiología , Prejuicio de Peso/estadística & datos numéricos , Adulto , Anciano , Femenino , Humanos , Masculino , Persona de Mediana Edad , Encuestas y Cuestionarios , Estados Unidos
15.
Psychosom Med ; 83(9): 1050-1057, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34747584

RESUMEN

OBJECTIVE: Perceived stress, lower fruit intake, and comfort eating are all risk factors for chronic disease. The present pilot study aimed to simultaneously mitigate all three risk factors by applying Pavlovian conditioning to change the nature of comfort eating. Specifically, stressed participants underwent a Pavlovian conditioning intervention designed to elicit comforting effects of fruit intake and thereby reduce negative mood while promoting fruit intake. METHODS: We developed a seven-dose Pavlovian conditioning intervention wherein participants temporally paired together Progressive Muscle Relaxation (unconditioned stimulus) with fruit intake (conditioned stimulus) daily for 1 week. Participants (N = 100, mean [standard deviation] age = 20.7 [4.6] years; 74% female) with moderate to high levels of baseline perceived stress were randomized to the intervention or an active explicitly unpaired control group, wherein the Progressive Muscle Relaxation and fruit intake also occurred but were not temporally paired together. After the intervention, participants' negative mood was assessed immediately before and after fruit intake to assess conditioning effects. Then, participants logged their regular food intake for 4 days using the MyFitnessPal smartphone app. RESULTS: After the intervention, fruit intake acutely improved negative mood to a greater extent among the intervention versus control group (F(1,98) = 3.99, p = .048, = 0.039). However, there was not a significant between-group difference in intake of fruit or traditional comfort foods at postintervention. CONCLUSIONS: Repeated pairing of fruit intake with a reliable distress-reducing activity led to the conditioning of comforting effects of fruit intake. Further refinement of the intervention design is necessary to translate this conditioned association to actual intake of fruit and other foods.


Asunto(s)
Frutas , Verduras , Adulto , Afecto , Condicionamiento Clásico , Conducta Alimentaria , Humanos , Proyectos Piloto , Adulto Joven
16.
Horm Behav ; 130: 104934, 2021 04.
Artículo en Inglés | MEDLINE | ID: mdl-33476675

RESUMEN

When current conditions are probabilistically less suitable for successful reproduction than future conditions, females may prevent or delay reproduction until conditions improve. Throughout human evolution, social support was likely crucial to female reproductive success. Women may thus have evolved fertility regulation systems sensitive to cues from the social environment. However, current understanding of how psychological phenomena might affect female ovarian function is limited. In this study, we examined whether cues of reduced social support-social ostracism-impact women's hormone production. Following an in-lab group bonding task, women were randomly assigned to a social exclusion (n = 88) or social inclusion (n = 81) condition. After social exclusion, women with low background levels of social support experienced a decrease in estradiol relative to progesterone. In contrast, socially-included women with low background social support experienced an increase in estradiol relative to progesterone. Hormonal changes in both conditions occurred specifically when women were in their mid-to-late follicular phase, when baseline estradiol is high and progesterone is low. Follow-up analyses revealed that these changes were primarily driven by changes in progesterone, consistent with existing evidence for disruption of ovarian function following adrenal release of follicular-phase progesterone. Results offer support for a potential mechanism by which fecundity could respond adaptively to the loss or lack of social support.


Asunto(s)
Progesterona , Aislamiento Social , Estradiol , Femenino , Fertilidad , Fase Folicular , Humanos , Reproducción
17.
Appetite ; 166: 105475, 2021 11 01.
Artículo en Inglés | MEDLINE | ID: mdl-34166748

RESUMEN

Understanding gender differences in meat consumption can help strengthen efforts to improve the sustainability of eating patterns. Compared to women, men eat more meat and are less open to becoming vegetarian. Simply considering between-gender differences, however, may overlook meaningful within-gender heterogeneity in how masculine and feminine identities associate with eating behavior. Distinguishing between specific types of meat is also important, given that some meats (e.g., beef) pose greater challenges to sustainability than do other meats. Through a highly powered, preregistered study (N = 1706), we investigated the predictive value of traditional gender role conformity and gender identity centrality for meat consumption frequency and openness to becoming vegetarian. Greater conformity to traditional gender roles predicted more frequent consumption of beef and chicken and lower openness to vegetarianism among men but offered no predictive value among women. No effects were observed for pork or fish consumption. Among women, greater traditional gender role conformity and gender identity centrality were associated with openness to becoming vegetarian for health reasons. Among men, lower traditional gender role conformity was associated with openness to becoming vegetarian for environmental reasons. These findings suggest that understanding meat consumption calls for greater distinctions between specific types of meat as well as deeper consideration of within-gender heterogeneity.


Asunto(s)
Dieta Vegetariana , Identidad de Género , Animales , Bovinos , Femenino , Humanos , Masculino , Carne , Factores Sexuales , Vegetarianos
18.
Appetite ; 163: 105243, 2021 08 01.
Artículo en Inglés | MEDLINE | ID: mdl-33812937

RESUMEN

Plant-based diets are beneficial to human health and environmental sustainability but suffer from low rates of adherence. For example, many people who self-identify as vegetarian sporadically eat meat and eventually give up their vegetarian diet entirely. We theorize that valuing a lifestyle of pro-environmental behaviors can enable people to adhere to a plant-based diet more successfully. In the current survey study, we tested this prediction among plant-based dieters for two outcomes: short-term adherence (for the past three days) and future-intended dietary adherence (intention to continue one's diet for the next 1-2 years). Over and above other dietary, motivational, and demographic factors, pro-environmental behavior positively predicted both short-term and future-intended adherence to plant-based diets. Moreover, pro-environmental behavior mediated links between (a) connectedness to nature and dietary adherence and (b) political ideology and dietary adherence. These findings highlight pro-environmental behavior as a tool for explaining and predicting adherence to plant-based diets.


Asunto(s)
Dieta Vegetariana , Dieta , Conducta Alimentaria , Humanos , Estilo de Vida , Vegetarianos
19.
J Appl Soc Psychol ; 51(4): 425-433, 2021 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-33821034

RESUMEN

The first months of 2020 rapidly threw people into a period of societal turmoil and pathogen threat with the COVID-19 pandemic. By promoting epistemic and existential motivational processes and activating people's behavioral immune systems, this pandemic may have changed social and political attitudes. The current research specifically asked the following question: As COVID-19 became pronounced in the United States during the pandemic's emergence, did people living there become more socially conservative? We present a repeated-measures study (N = 695) that assessed political ideology, gender role conformity, and gender stereotypes among U.S. adults before (January 25-26, 2020) versus during (March 19-April 2, 2020) the pandemic. During the pandemic, participants reported conforming more strongly to traditional gender roles and believing more strongly in traditional gender stereotypes than they did before the pandemic. Political ideology remained constant over time. These findings suggest that a pandemic may promote the preference for traditional gender roles.

20.
Ann Behav Med ; 54(2): 132-138, 2020 01 24.
Artículo en Inglés | MEDLINE | ID: mdl-31504090

RESUMEN

BACKGROUND: Alcohol craving, or the desire to drink alcohol, has been identified as a key experience preceding alcohol use. Alcoholics Anonymous has long claimed that individuals can allay alcohol cravings by eating sweets. Empirical tests of this strategy are limited to a few preclinical studies in rats, and there is no existing experiment testing the acute effect of eating sweets on alcohol cravings in humans. PURPOSE: The current study sought to experimentally test the acute effect of eating sweets on alcohol cravings in a sample with at-risk drinking. METHODS: After being exposed to an alcohol cue, individuals with at-risk drinking (N = 150) were randomly assigned to eat sweets (n = 60), eat calorie-equivalent bland food (n = 60), or watch a video (n = 30). Caloric amounts were manipulated. Individuals with at-risk drinking were then exposed to a second alcohol cue. Changes in alcohol cravings from after the first to after the second alcohol cue were measured via visual analog scale and heart rate. RESULTS: There were no significant between-group differences in changes in alcohol cravings. Caloric amounts did not modify effects. CONCLUSIONS: Experimental findings did not provide evidence to support the clinical lore that eating sweets can reduce alcohol cravings, albeit only acutely and for those with at-risk drinking. Other empirically supported strategies for managing alcohol cravings (e.g., pharmacotherapies, mindfulness) could instead be promoted.


Asunto(s)
Alcoholismo/prevención & control , Ansia/efectos de los fármacos , Carbohidratos de la Dieta/farmacología , Adulto , Señales (Psicología) , Carbohidratos de la Dieta/administración & dosificación , Femenino , Frecuencia Cardíaca/fisiología , Humanos , Masculino , Evaluación de Resultado en la Atención de Salud , Adulto Joven
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