Answer:
the human body requires essential fats and lipids in order to maintain the body. it is impossible to have 0% body fat, unless you are asking for death.
Stress might be caused by anything like not sleeping very well or/and not digesting your food that you eat correctly stress is a complecated thing Well hope it helps
Bathroom eating doornobs hair
Psychology is the study of brain and how it works and responds to different things.