Adolescent sexual behavior can be influenced by exposure to mass media, both print and electronic. One of the efforts to improve adolescents' knowledge about sexual behavior is by providing health education.  Peers are also a significant source of information about sex in shaping adolescents' sexual knowledge, attitudes, and behavior. This study aims to determine whether or not there is an effect of Group Guidance with Peer Group Education on the Level of Knowledge about Premarital Sexual Behavior of Adolescents at Smk Bina Informatika Bogor City. This study used a pre-experimental research design of the pre-post part in one group (One-group pre-post test design). The results showed that based on the Marginal Homogeneity Test obtained (Asymp.Sig) 0.000 <0.05, Ha was accepted, meaning that there were differences before and after being given group guidance with peer group techniques about adolescent premarital sexual behavior.

This study aims to determine the effect of the effectiveness of abdominal stretching exercises and warm compresses on dysmenorrhea pain in young women at MTS Tanwiriyyah Cianjur in 2022. Young women often experience pain during menstruation (menstruation), causing discomfort, especially in daily activities. This complaint is not very good for adolescent development. By using non-pharmacological treatment, namely abdominal stretching exercises and warm compresses for dysmenorrhea pain, it can reduce pain in young women. This research method uses a quantitative research design with a quasi-experiment method with a two group pre-test and post-test design. Results achieved based on the research results in the stretching group was 80.0%, and the results of the Pairet Sample t test with a P value of 0.004 < 0.005. Meanwhile, in the warm compress group, it was 86.7% with Pairet Sample t test results with P Value 0.000 < 0.005. The conclusion of the research shows that there is an influence of the effectiveness of abdominal stretching exercises and warm compresses on dysmenorrhea pain in young women at MTS Tanwiriyyah Cianjur in 2022.