I advise him to make the colour of the room soft and gentle in order to relax himself. He 'd better take part in some activities or he may be tired as a result of studying at all times.

我建议他可以将房间的颜色改得柔和些，缓解下学习的紧张，适当加入一些运动，不然一直学习，身体会累坏的。