Umm, its bad I think.
Lack of sleep can lead to many diseases and problems. Sleep is one of the basic requirement like food, water and air.
we need a better understanding of this question
Answer:
I guess 3) cuz that's the appropriate one and correct one..
D. He should perform rehabilitation exercises, because he his body has gone 3 weeks without the same routine, and therefore he may be more vulnerable to injury.
