1, psychological anxiety or negative anxiety and pessimism will adversely affect the autonomic nerve, which affects the endocrine system and
1, psychological anxiety or negative anxiety and pessimism will adversely affect the autonomic nerve, which affects the endocrine system and the immune system, resulting in a sharp decline in immunity period.
2, physical fatigue and overwork will affect the autonomic nervous system, and then on the endocrine system and the immune system. Improper weight loss, lack of rest, a long time to do heavy physical work, overeating and so will cause the human body overload, resulting in decreased immunity.
3, exercise is not enough exercise will make the human body each system is often in a state of slack, once the emergence of bacteria and other "invasion", the function will not be quickly mobilized and put into operation.
4, the human body with the growth of age, the body's organs, such as in the natural aging, the function has not been able to fully play or can not reach the level of the young, resulting in the decline of human immunity.
5, the treatment of tumor patients with radiotherapy and chemotherapy to improve the therapeutic effect of the tumor has played a significant role, but at the same time there is a great deal of damage to the human body, resulting in decreased body immunity.