Only your fingertips should touch the ball when setting in volleyball. It is a light push of the ball into the air. Too much hand will cause the ball to spin.
A I think it would be muscles and bones
B, Matthew is skipping meals which is a harmful behavior in its self, as well as smoking and sleeping at random hours.
AS we all know that smoking is very dangerous to our health. Not only to the person who uses it but also to the person who inhales it. By simply refraining from smoking, you are getting yourself away from lung cancer and other implications that caused by smoking.
First I would have my friend call an ambulance while I checked his pulse. After this, I would most likely have my friends call for help in the hallway. Then I would try to put him against the wall in an upright position. Then I would try to get a response out of him whether verbally or physically. After this, I would wait for an ambulance to get there while sitting him up and trying to wake him up at the same time.