Secretions from the skin such as sweat protect the body because

Sebum is an oily secretion produced by the sebaceous glands. whole cells of oil are produced and burst open in the duct of the gland lubricating the hair follicle and arrives at the skin from the follicle Sudoriferous glands(sweat glands) produce sweat that travels to the skin's surface via pores in the skin

Atp is is our little "pocket" of energy. of course, if you have too little, then it means you have too little energy, and you'll pass out. the way to not have enough, is to have no energy sources (glucose, fats, proteins). you can't have too many atp molecules. cycles like the krebs cycle produce it, but if you have too much of any substrate (or too little for that matter), the cycle stops and atp is no longer made (it stops until substrate levels are such that the process can go on). in any case, this is unlikely since atp is constantly hydrolyzed and remade, even while you're asleep. you won't have too much. if you have zero, you are dead or dying.