text: Lastly, the kid may lose personal interest in other things. What if he/she decided to join an after school club just to feel left out, or stressed, and grew a bad attitude towards the club? This can cause stress, anxiety, and loss of sleep if he/she is stressed due to their dislike towards the club, but they are being forced, so they can not do anything about it. These causes can effect bad behavior in school, sleeping in class, dropping grades, and lack of interest in learning.