The pain changes mentality of the person, its behaviour in a society, leads to its disorganisation, it is a social problem. And, at last, the pain - the invalidity reason, and is already economic problem. Active transport is braked at low temperature and an oxygen lack. Process всасывания influences рН environments. Optimum рН for всасывания - neutral. The eye cannot is equally accurate to see subjects, отстоящие from it on different distance and to adapt an eye for clear vision разноудаленных subjects, accommodation process is necessary. If the person looks afar, цинновы sheaves are tense, and цилиарные muscles are weakened, thus the crystalline lens уплощен is a rest of accommodation. At examining of subjects close located from eyes цилиарные muscles are reduced, цинновы sheaves are weakened, the crystalline lens becomes more convex is a pressure of accommodation. 6. The diet should satisfy completely requirement of an organism for vitamins, mineral salts and water, and also to contain all irreplaceable amino acids (high-grade fibers).