Carbohydrates are in place of simple sugars and complex carbs which either are quick energy or stored energy for performance. Without carbs, the body will shut down because you need sufficient energy to keep going. Carbs are what keeps you moving and functioning.
The stretching of the wrists in circle to stretch out is a type of a non-locomotive motion which is a motion that does not require displacement in the place. In this case,the stretching of the hands is a movement to combat repititive stress in typing the keyboard in this case
CO2 levels of the blood are elevated. CO2 is a acid
Anorexia or purging otherwise known as bulimia.