They may experience irritability and depression because when a person constantly smokes, his/her brain begins to rely on the chemicals it gets from the person smoking, which results in the brain "getting lazy" and not producing the chemicals anymore. If the person were to suddenly quit, the brain would lack in the chemicals it had stopped producing, making the person feel constantly annoyed and depressed because of the chemical imbalance.
Q. Stretching that is characterized by a bouncing action is called
A. Ballistic stretching
Generally it can either be ones feelings about oneself or ones past experiences, usually the two link in some way
False osteoporosis is a type of arthritis
