The main meaning of this sentence is that keeping a good mood can make people healthy and live longer. That's understandable. Because everyone thinks so whenever and wherever. Therefore, when many elderly people are seriously ill, their families are reluctant to tell him the truth. They just hope that he can maintain an optimistic and healthy attitude and not aggravate his illness because of his sadness after learning about his illness.

Modern science has found through research that maintaining an optimistic attitude does have many benefits to physical and mental health. First of all, it can improve memory, because scientists have found that stress will lead to an increase in the number of certain protein in the brain. This protein is related to Alzheimer's Harmo disease, and stress may accelerate the deterioration of Alzheimer's Harmo disease. On the contrary, people have better memories when they are relaxed and happy.

At the same time, stress will reduce our ability to resist temptation, especially increase our desire for junk food. Constant stress will also reduce the sensitivity of immune cells, reduce the ability to resist inflammation, and double the chance of catching a cold. Stress may also increase oil secretion and clog pores, which may lead to acne. The sudden appearance of other skin problems, such as psoriasis, is also related to stress. Relaxation will be very helpful. 1998 A study found that people who meditate often can cure psoriasis faster.

Experiments show that if you are in a tense environment, people will have symptoms of depression, such as loss of appetite, depression and despair. Stress can also make people with a history of depression or bipolar disorder become emotional and may lead to recurrence. In a relaxed state, people can accomplish more tasks better, have healthier bodies and live longer.