① Decreased cardiovascular system function. For example, myocardial fibers gradually contract, senile pigment (lipofuscin) is deposited in myocardial cells, and heart valves become thick and hard, and their elasticity decreases.

② Aging of respiratory organs. It is characterized by decreased vital capacity, decreased respiratory function and decreased compensatory ability.

③ Changes of digestive system. Mainly the weakening of oral and gastrointestinal functions, atrophic changes of gums and teeth.

④ Changes of musculoskeletal movement system. The main manifestations are as follows: with the increase of age, muscle fibers become thinner, elasticity decreases and contractility decreases; The decrease of organic components and the increase of inorganic salts in bones lead to the decrease of elasticity and toughness of bones and easy fracture.

⑤ Changes of nervous system. Mainly manifested in the loss of brain cells to a certain extent; Nerve conduction velocity decreases; The slowness of the elderly reflects the weakening of flexibility.

Second, the performance of brain aging:

1, the visual spatial ability decreases.

People's recognition and spatial positioning of three-dimensional world objects belong to visual spatial ability. The decline of visual space ability will make people have obstacles in judging the direction, such as getting lost, not knowing the direction, not knowing which building and unit their home is in; When taking the bus, you will take one more stop or one less stop.

2, emotional control ability disorder

Generally speaking, people can control their emotions better. However, if the emotional control ability is impaired, it will show indifference, lose interest in other things, be irritable and be emotionally unstable.

3. The execution ability is declining.

Including planning, organization, decision-making and implementation, and can simplify the environment and improve work efficiency. When the executive ability declines, it is often impossible to complete multiple tasks, and things can only be done one by one, or even one can't be done well.

4. Attention loss

It is not too difficult to concentrate at work, but some people will find it difficult to concentrate as they get older. For example, when others are talking, they will be unconsciously distracted, which is a manifestation of reduced attention.

5. Memory deterioration

Poor memory is the mantra of many people, and it is also the most obvious and easily found manifestation of dementia. If you keep repeating the same action or saying the same sentence, you always think that you have just finished eating and are going to wash the dishes. These manifestations of memory loss may affect people's normal life. ?

Extended data:

Anti-aging methods:

First, balanced nutrition.

In fact, the anti-aging method is very simple. I suggest you don't have the bad habit of picky eaters. Anti-aging maintenance must be inseparable from diet therapy. Dietotherapy can absorb a lot of nutrients, help us to enhance immunity and skin resistance, and can better resist external stimuli and delay aging.

Second, broccoli is anti-aging.

Broccoli is a kind of vegetable with very good anti-aging effect. You can use broccoli juice and then add a little honey for diet therapy and skin care. Various nutrients in broccoli contribute to anti-aging maintenance, and the moisturizing effect of honey can also rejuvenate the skin.

Third, Pu 'er tea beauty anti-aging.

The best anti-aging method, do you know that Pu 'er tea has anti-aging effect? Pu 'er tea has the best anti-aging effect among all teas, and drinking more Pu 'er tea has the effect of anti-aging maintenance.

Fourth, develop regular living habits.

In order to think of better anti-aging maintenance, it is necessary to develop regular and scientific living habits, including adequate sleep and persistent exercise. It is generally recommended to go to bed at 10 at night and do aerobic exercise at least twice a week for about 1 to 2 hours.

References:

Aging-Baidu Encyclopedia