List the functions of vitamin A, vitamin C, and vitamin D.

Vitamin A helps form and maintain healthy teeth, bones, soft tissue, mucous membranes, and skin.

Vitamin B6 is also called pyridoxine. ...

Vitamin B12, like the other B vitamins, is important for metabolism. ...

Vitamin C, also called ascorbic acid, is an antioxidant that promotes healthy teeth and gums.

when you rub, you also apply pressure, that pressure can urge the poop to come out. i think that when your rubbing, you also might be slightly breaking it up and that can further fill the stomach.  

well say a good goal is to do 150 sit ups in a week! or 90 pull ups a day. even 60 push ups in a month these are all fair goals!