Lifestyle of students from different universities in Wroclaw, Poland.

Background: Changes in the economic and political system that took place in Poland in recent decades had a significant impact on lifestyles of different social groups, especially in youngsters as vulnerable and open to all novelty and changes.

Objective: The aim of this study was to evaluate the healthy or non-healthy behaviours including physical activity, diet, time devoted for sleeping, leisure, stress and the use of drugs by students of four universities in Wroclaw.

Material And Methods: The study involved 604 students (305 women and 299 men) from four universities in Wroclaw: University of Wroclaw - 25.

Effect of attending childbirth education classes on psychological distress in pregnant women measured by means of the General Health Questionnaire.

Background: Pregnancy brings about many changes in a woman's life in somatic, psychological and social spheres. Therefore, many women decide to participate in childbirth education classes. The aim of study was to determine the differences in emotional distress between women who participated in childbirth education classes and these who did not.

Melanocortin-4 receptor gene polymorphism and the level of physical activity in men (HALS Study).

Melanocortin plays an important role in the energy balance in humans. Actions of melanocortin are exerted through activation of five receptors among which the melanocortin-4 receptor (MC4R) is especially abundant within the central nervous system (CNS). It has been proved that genetic variations of the MC4R gene are associated with the energy intake.