Why do psychological factors have such a great influence on physical health? It depends on the role of the brain. People's psychological phenomenon is the reflection of objective things in the brain. The brain is the advanced center of the human body and plays a leading or regulating role in all functional activities of the body. Modern medical research has proved that strong emotional fluctuation will disturb the normal operation of brain function. Unbalance the internal environment of the body and cause many diseases. Pavlov pointed out: "All stubborn and heavy worries and anxieties will definitely open the door to various diseases." It was found that 59% of the 170 cases that died in a short time after experiencing intense stimulation and intense emotional fluctuation died after the news of personal misfortune and huge loss came; 34% died in dangerous or threatening situations; 7% died of ecstasy. Pirogov, a surgeon in the former Soviet Union, observed that the wounds of winners heal faster and better than those of losers. All of the above shows that emotional factors play an important role in the occurrence, development and prevention of diseases.
After retirement, the living conditions and environment of the elderly have changed, and diseases have caused some emotional fluctuations and psychological changes. Show irritability, irritability and complaints in behavior; Or listless, depressed, pessimistic and disappointed, fidgeting; Or loneliness, paranoia, depression, inferiority, etc. Therefore, the elderly should pay more attention to the great pain caused by excessive emotions. From the psychological point of view, bad emotional stimulation will make the whole psychological activity out of balance, thus causing a series of changes in the physiological functions of tissues and organs, which can induce endocrine dysfunction and decrease immunity and provide internal conditions for the occurrence of tumors.
Although there are many causes of cancer, in recent years, a large number of scientific experiments have confirmed that bad psycho-social stimulation is a strong factor to promote cancer, which has been confirmed by animal experiments. If dogs are divided into two groups, one group will be in a state of panic for a long time, while the other group will live in a quiet environment. Results Three of the six dogs in the first group died of cancer, and all the four dogs in the second group were safe and sound. Modern psychosomatic medical experiments have proved that adverse psychological factors, excessive stress and stimulation, depression and sadness can degrade thymus through steroid action, cause immune T lymphocyte maturation disorder, inhibit immune function and induce cancer.
People's mental state in daily life has obvious influence on cardiovascular function. For example, when you are emotional, your heart will accelerate, and when you are shy, your facial blood vessels will expand. These are common phenomena. Clinical observation shows that angina pectoris often occurs when you are emotional. This is because during emotional or nervous mental work, the nervous system is in a state of high excitement, and the content of catecholamine in blood increases, which makes blood vessels contract and blood pressure rise, thus increasing myocardial oxygen consumption, suddenly causing angina pectoris and even inducing acute myocardial infarction in severe cases.
Most people have a good appetite when they are happy, but they lose their appetite when they are sad. Studies have shown that when mood changes, vagus nerve impulses are released, and gastric function is affected. In addition, emotions have obvious changes to the intestinal function, such as anger and anxiety, which make the colon hyperfunction, reduce the continuous contraction of the colon, narrow the colon, increase the secretion of lysozyme, make the intestinal conjunctiva brittle, appear spotted bleeding, and even erosion and ulcer.
Too much emotion will lead to serious disorder of nervous system, leading to various neurosis, including neurasthenia, hysteria, obsessive-compulsive disorder, etc., and even mental disorder and behavioral disorder in severe cases. This is how most so-called reactive psychosis is caused. It is a mental disorder caused by strong, sudden or lasting mental factors.
Endocrine experts warn people: "Excessive stress, long-term anxiety and other mental burdens are important factors that induce hyperthyroidism." From the complaints of hyperthyroidism patients, we can know that they go to school, go abroad, be promoted, be promoted, etc. It can lead to mood swings, but due to overwork and continuous mental stress, it is more closely related to the onset, and there are obviously fewer patients with hyperthyroidism in rural areas.
As can be seen from the above, the emergence and development of many diseases are related to psychological factors. In order to prevent the occurrence of diseases, we must pay attention to mental health.