Big homie is in the clouds
The cells in the heart need a constant supply of nutrients / oxygen and to get rid of their waste products ans that why it needs its own special circulatory system.
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
your musculoskeletal system responds to stress by tensing up your muscles. Muscle tension is a response to stress. If you've ever noticed that you're stressed out youll notice your body will naturally tense up. Once the stress passes your muscles will relax.
