You think exercise is not possible in college?
For me, going to my university is no cakewalk. One, I had to walk my way from home t the main road where I can ride a jeepney going to my school. but there's more. No jeepneys ever stop at my school. They can only bring me to the overpass ridge closest to my university. So I have to climb an old yet long overpass and go down the other side on the road. Then I must walk my way two street blocks and cross the pedestrian crossing to the new other side of the road again. Walk a bit of distance and enter my universitty building. Then climb SEVEN OR NEIGHT floors by stairs then sit down exhausted at my classroom.
Very fitting exrcise done EVERY SEVEN in the morning every class day.