At different ages, the secretion of various active peptides is also very different, according to the amount of secretion, people's life can generally be divided into:
(1) Secretion sufficient period (25 years of age before the youth period) this period of endocrine balance, strong immune function, the human body is generally not prone to disease;
(2) Insufficient secretion period (unbalanced period) (30-50 years old and middle age) This period if the active peptide secretion is insufficient or unbalanced will appear a variety of related sub-health status and mild disease symptoms (common in people over 40 years of age);
(3) Secretion period (severe shortage period) (middle-aged and old age over 50 years old) this period of serious if the active peptide serious deficiency and serious imbalance, may appear very prominent symptoms of aging, or may cause a variety of related diseases (more obvious in the population over 50 years of age);
(4) Secretion termination period (aging period), this period is very short, due to the control of the human endocrine "commander" active peptides do not secrete or reduce secretion, resulting in the decline of cell function, causing organ failure and loss, and finally lead to the end of life.