Various functions of the human body need to be used continuously, and it is used reasonably and moderately. This reasonable and moderate use is a positive and beneficial exercise for human function. But unfortunately, many people don't pay much attention to the word "moderation". They are often used to exercising under the guidance of books, newspapers and some so-called authorities, and have developed a so-called "good habit" type of exercise.

In fact, many "good habits" exercises and repetitive habitual movements are not good for balancing human functions. For example, since most people learn to walk, they basically keep their eyes on the road and rarely walk backwards and sideways. This fixes the use and nourishment of muscles, bones, tendons and other parts set by the human body to realize this function, so that these parts are in a state of tension for a long time and overloaded, resulting in strain, while irrelevant parts are either unused or underused, not to mention exercise and nourishment, so that the blood circulation and nerve impulses of these parts are often in a silent state. Over time, their muscles and bones will inevitably lose their richness and strength.

Similarly, some civil servants, company employees, drivers, etc. Always repeat an action for a long time at work; Cervical vertebra, back, spine and other parts are prone to discomfort or disease, which is the so-called "occupational disease". We should consciously change this point, including habitual posture, movements and mentality.

Fitness experts warn that there is no difference between good habits and bad habits of exercise. The key is not to be controlled and dominated by it for a long time, not to be "single-minded" and not to be addicted to it. Or simply abandon all the habits and get rid of them. It is best to develop a habit of constantly changing one's original habits, and to develop the habit of "willfulness" and "endless comings and goings", so that each habit is benign in people and changes with time, becoming a "good partner" of human health.

In addition, changing the intensity and time of physical exercise is also an aspect of sports diversification. Each exercise uses different muscles or uses the same muscles in different ways. Diversification of exercise can make the body healthier in an all-round way. If you do slow exercise for a long time on the first day, shorten the time and increase the intensity on the second day.

The elderly should pay attention to four dangerous symptoms after meals.

Some people compare the performance after a meal to a barometer of the stomach, which is more suitable for the elderly. If the elderly have the following symptoms after meals, be careful.

1. flatulence after meals. The digestive ability of the spleen and stomach of the elderly is gradually weakened, the gastric motility is poor, food accumulates at the bottom of the stomach, and flatulence often occurs. At this time, we should eat less indigestible foods, such as beans and strong pasta, and get rid of the habit of wolfing down. If the symptoms are serious, consider whether there are diseases such as chronic gastritis and gastroptosis.

2. Have loose bowels after meals. Diarrhea occurs after meals. If you have a cold or improper diet, sometimes you will have a stool when you go to the toilet, but you will not lose weight, which may be caused by chronic allergic enteritis. If you eat spicy and greasy food and drink alcohol, you will have diarrhea, and some people will be accompanied by abdominal pain. Abdominal pain will be relieved after diarrhea, which may be intestinal dysfunction. When this happens, the diet must be light, avoid spicy, greasy and cold food, and keep your abdomen warm.

3. Vomiting after meals. If the elderly vomit after meals, we should first rule out whether there are space-occupying lesions in the gastrointestinal tract, as well as organic lesions such as gastric ulcer and duodenal ulcer. There is nothing unusual in gastroscopy, which may be caused by weakened gastrointestinal function and improper diet. The reasons are more common in overeating, drinking too much and eating spicy food. In addition to changing bad eating habits, you can also take some gastric motility drugs or gastric mucosal protective agents appropriately. In addition, the elderly who take some drugs all the year round, such as aspirin, indomethacin, digoxin, erythromycin and so on. There may also be gastrointestinal reactions and vomiting.

4. Burp after meals. Some old people often burp, not only after meals, but also before meals. There are many reasons for burping, mostly caused by indigestion. Chronic gastritis, reflux esophagitis and other diseases can also lead to frequent hiccups. Repeated hiccups in elderly people with hypertension can't stop, which may be a precursor to stroke. In addition, if the elderly suddenly burp constantly, accompanied by symptoms such as emaciation and loss of appetite, they also need to pay attention.

Finally, if the elderly have the above symptoms, it is best to have a gastroscopy and colonoscopy to avoid delaying the diagnosis and treatment of other diseases.

Old people are always bored at home, which hurts their eyes and minds.

Many retired people like to live in seclusion on weekdays and turn a deaf ear to things outside the window. When the weather turns cold, there is even more reason to stay indoors, watch TV, sleep and become a veritable "otaku". Such a life is actually harmful to the elderly.

Sitting on the sofa watching TV is the most harmful to the health of the elderly. Some family dramas and historical dramas are very attractive to the elderly. One broadcast is several episodes, which causes the elderly to be motionless for two or three hours, which is easy to increase the eye load, which in turn leads to blurred vision, sore eyes and acute glaucoma. In addition, the cervical and lumbar vertebrae of the elderly have shrunk to varying degrees. Sedentary can easily lead to cervical spondylosis and lumbar osteoarthritis, leading to dizziness, neck pain, backache, backache and numbness in the legs.

To this end, Professor Tian Xiaoyan, an expert in geriatrics in the Fourth Affiliated Hospital of Harbin Medical University, suggested that the elderly should not watch TV for more than two hours. They should get up every 45 minutes, look out the window or close their eyes. It is best to sit in a hard chair with a backrest, or you can use a low stool to put your feet to relax your lower limbs. Old people should choose more educational programs that can inspire their thinking and watch more social news and other programs that are close to real life, so as to stimulate their enthusiasm for life and not feel lost. If you suffer from coronary heart disease and hypertension, don't watch programs that are too irritating, so as not to be too nervous and induce diseases.

If it is convenient for the elderly to move around, go out as much as possible and connect the "local gas", which can strengthen the body and delay aging. For example, find someone to play chess and cards in the downstairs garden, or visit museums and exhibition halls to cultivate sentiment. Actively participating in community and group activities can enhance interpersonal communication and enrich the life of the elderly.

Psychological trauma will accelerate forgetfulness in old age.

A study in China said that mental illness caused by huge psychological trauma may damage the memory area of the brain. Even if the disease is cured, brain injury will make the symptoms of amnesia in the elderly come early.

Among the survivors of World War II, some people suffered from mental illness called post-traumatic stress disorder, and often had nightmares, frequent fears, depression and memory loss.

In order to study the relationship between this disease and memory impairment, scientists from Mount Sinai Medical College in new york studied the situation of some patients in their old age.

Scientists choose some survivors of the Nazi Holocaust during World War II as the research objects and a group of ordinary people as the control. These holocaust survivors all suffer from post-traumatic stress disorder.

When the subjects were 67 and 72 years old, the scientists gave them a memory test and asked them to remember the connections between some common words. It is found that with the increase of age, people's memory ability in this respect will decline.

Tests show that ordinary people who have never experienced great psychological trauma almost got full marks in both tests, while those with post-traumatic stress disorder scored significantly lower than ordinary people at the age of 67, and only got half the questions correctly at the age of 72. The latter situation usually appears in ordinary people born after 1980s.

This shows that psychological trauma will bury hidden dangers and make the brain age ahead of time. This may be because people will produce a lot of adrenaline when they experience disasters or wars. This hormone acts on the hippocampus, which is responsible for memory, causing it to shrink.