[Frequency and clinical overview of hypolactasia among children, adolescents and students of Szczecin schools].

Introduction: Adult type hypolactasia is the most common non allergic abnormal reaction to food. Its frequency increases with age. Hypolactasia creates the risk of decreased milk consumption, which could be the cause of lowered bone density, osteoporosis and fractures.

[Drinking and drug abuse among gymnasium students in Szczecin].

Introduction: The aim of this work was to determine the extent and causes of drinking and drug abuse by the youth.

Material And Methods: A questionnaire was administered to 918 students aged 13-16 years from five gymnasia in Stettin. The results were analyzed statistically.