RESUMEN
Time-related ageing of the organism brings about the limitations to all human beings. The ageing process pertains to all organs and neither does it spare the brain, although, apart from neurodegenerative diseases, the changes in brain's functions seem to be less detectable. Many studies that were conducted for years in ageing adults provide evidence that lifestyle in which psychic and physical activity is maintained significantly and positively affects brain plasticity, i.e., normal ability to learn and develop, and therefore this lifestyle serves as a protective agent for cognitive functions even in the case of degenerative changes of brain tissue.
RESUMEN
BACKGROUND: Along with socio-economic pression increase in developed countries, the progressive shortening of night sleep has been observed. Sleep plays a vital role in human organism regeneration, and its deprivation leads to a series of adverse psychosomatic effects, including intellectual performance limitation or reducing body immunity, which increases susceptibility to diseases. Chronic sleep deprivation, quite often affecting medical students, significantly contributes to hypersomnia and leads to chronic fatigue. MATERIAL AND METHODS: The results of 60 students were analysed; students were divided into 2 subgroups, depending on the average sleep duration during previous 2-3 nights: IA (2.3±0.8 h on average) and IB (4.9±0.5 h on average). The control group consisted of 50 students, whose night sleep duration in that period was 7.5±0.62 h. In all subjects under analysis visual and auditory evoked potentials were registered, which is a non-invasive method of cognitive performance tests. RESULTS: The obtained results showed that people with average night sleep duration 2.3±0.8 h (subgroup IA) had worse rate and precision of stimulus response, and thereby significantly worse (p < 0.001) sensorimotor performance, then those from subgroup IB. The study of evoked potentials showed significant (from p < 0.04 to p < 0.001) elongation of all latency p-waves connected with the stimulus perception (N75) and attention span (P100, N135). Moreover, significant elongation of visual latency wave P100 and auditory wave V was related to psychophysical fatigue occurring in sleep deprivation. CONCLUSIONS: The analysis of this study results, obtained in medical students showed that sleep deprivation occurring during exam session is closely related to cognitive abilities, which in turn adversely affects the academic achievement. These results indicate that night sleep duration is a differentiating factor for cognitive abilities quality. Also, psychosomatic fatigue adversely affects cognitive processes. Med Pr. 2023;74(1):27-40.
Asunto(s)
Privación de Sueño , Estudiantes de Medicina , Humanos , Sueño , Duración del Sueño , CogniciónRESUMEN
BACKGROUND: Suicide attempts by adolescents continue to be a major public health problem. The purpose of this study was to examine the difference in the family functioning and sociopsychopathological risk factor relationship between female bulimic adolescents with suicidal ideation only, and those who attempted suicide. METHODS: A group of 211 patients were observed for 12 months. Data from 63 subjects (SUG [suicide group], age 17.2 +/- 1.3 years) who had attempted suicide were then compared with 148 (control group, age 18.1 +/- 1.5 years) who had expressed suicidal ideation but did not follow through. RESULTS: Those in the suicide attempt group had been exposed more frequently to physical/sexual violence in childhood. As adults they either lived alone or were dissatisfied with their partnership. The frequency of borderline personality disorders and depressive disorders in this group was significant. Psychosomatic symptoms, disturbed coenesthesia, substance abuse, social impairment and interference with their perception of their own life circumstances, as well as their job performance, often preceded the suicide attempt. Nine genuine risk factors that occurred significantly more often in the SUG were calculated out of all the stress factors using stepwise logistic regression: 'as a child I was even hit with a stick or whip', 'I had no set orientation in life', 'I had a feeling of loneliness despite family and friends', 'I could not relax', 'incapable of dealing with the public', 'I do not like to be touched', 'parents have psychiatric disorders', 'misuse of stimulants', and 'as a child I felt lonely' (odds ratio, 10.56-1.90). CONCLUSION: Adverse family experiences and multiple sociopsychopathological factors may increase the risk of suicide in female bulimic adolescents.
