Maybe for some teens. When I was in high school way back in the late '70's I was definitely symptomatic of bipolar. Never talked with anyone about it; it was almost unheard of for a kid to be open about mental health issues back then. I was very into modern dance, danced for at least 2 hours every day except Sunday. The exercise did not do anything to help my symptoms. I think that if a kid is depressed and nothing else is helping, it's cruel not to at least try an antidepressant.