<p>If he lives in an area where the climate is different or there’s less sun it could have an impact on his body. A friend of mine got very depressed when he left to an ivy school. Mind you she lived on the beach. She didn’t talk to her parents, she didn’t wanna really do anything she seemed “bored”. Her grades began to drop. Eventually the school got involved and luckily she was able to retake her classes. They got her a special light for her dorm and she’s perfectly fine now and loves college. This of course may not be the same case as your son.</p>