There are a lot of teenagers who have signs of depression which could be brought on because of the hormonal changes happening within them and because they are now facing new feelings which they are unable to deal with. At this stage a lot of them start indulging in drugs and alcohol and this only makes matters worse. A teenager needs a lot of understanding and affection from his siblings and parents at this time. Chiding him could only make him feel worse and when under depression he or she could do great harm to themselves.
Guidance and counseling along with a healthy lifestyle is what a teenager needs. As a teacher or parent you would have to change his lifestyle and give him something interesting to fill his free time with. This could be a hobby, a game, sports or even the gym. Working out is the best way to make depression go away and this also makes the body fit. Parents should make time for their kids and spend quality time with them and listen to their problems instead of leaving them to deal with them on their own.
To get rid of the signs of depression in a teenager who is just going through a period of sadness and confusion in his life organizing fun outings with the family could help them overcome it. However, if the feeling persists and the depression gets worse then it is best to get professional help to treat the person and not delay any further or wait for something drastic to happen.