Malnutrition among result from inappropriate eating behavior that leads to changes in body weight. Consuming excessive amounts of salt, sugar, carbonated drinks, alcohol or inactivity causes overweight or obesity. To prevent malnutrition, it is necessary to prevent nutrition and to motivate prohealth behaviors that should be targeted at a given group of society. Thanks to this, it may limit or even exclude the emergence of eating disorders, which intensify the increase in the incidence of civilization diseases. The aim of the article is an attempt to present selected elements of lifestyle. The survey was addressed to 3rd grade students from 2 public secondary schools (189 boys and 178 girls). A proprietary questionnaire entitled “My health – I care for them” was used for the study. The questionnaire included questions about the diet, forms of spending free time and participation in physical education classes at school. Watching TV is the most common form of spending free time (37% boys and 32% girls). Only 7% of girls and 18% of boys chose participation in sports as a form of spending their free time. 28% of boys and as much as 31% of girls admitted that they do not participate in physical education classes. The type of drinks consumed by students was significantly dependent on their gender. The sandwich is chosen by 31% of boys and 23% of girls. Fruit is declared by 28% of the surveyed girls and only 2% of boys. Research has shown that there are many abnormalities in the diet of adolescents. The widespread belief that a slim figure is an asset nowadays prompts many people to use many slimming diets or fasting, which when used excessively can pose a threat to the developing organism. The respondents also show insufficient physical activity. Students more and more often choose passive recreation, because physical activity does not give them as much satisfaction as playing on a computer.

Malnutrition among result from inappropriate eating behavior that leads to changes in body weight. Consuming excessive amounts of salt, sugar, carbonated drinks, alcohol or inactivity causes overweight or obesity. To prevent malnutrition, it is necessary to prevent nutrition and to motivate prohealth behaviors that should be targeted at a given group of society. Thanks to this, it may limit or even exclude the emergence of eating disorders, which intensify the increase in the incidence of civilization diseases. The aim of the article is an attempt to present selected elements of lifestyle. The survey was addressed to 3rd grade students from 2 public secondary schools (189 boys and 178 girls). A proprietary questionnaire entitled “My health – I care for them” was used for the study. The questionnaire included questions about the diet, forms of spending free time and participation in physical education classes at school. Watching TV is the most common form of spending free time (37% boys and 32% girls). Only 7% of girls and 18% of boys chose participation in sports as a form of spending their free time. 28% of boys and as much as 31% of girls admitted that they do not participate in physical education classes. The type of drinks consumed by students was significantly dependent on their gender. The sandwich is chosen by 31% of boys and 23% of girls. Fruit is declared by 28% of the surveyed girls and only 2% of boys. Research has shown that there are many abnormalities in the diet of adolescents. The widespread belief that a slim figure is an asset nowadays prompts many people to use many slimming diets or fasting, which when used excessively can pose a threat to the developing organism. The respondents also show insufficient physical activity. Students more and more often choose passive recreation, because physical activity does not give them as much satisfaction as playing on a computer.