Two, the World Health Organization put forward ten health signs.
1. Energetic, take time to cope with work pressure, and don't feel nervous.
2. Keep an optimistic and positive attitude.
3. Be good at rest and have a good sleep.
4. Strong adaptability.
5. Resist the common cold and infectious diseases.
6. Normal weight and symmetrical figure.
7. Bright eyes and keen reaction.
8, teeth clean, no cavity.
9, the hair is shiny, no dandruff.
10. Muscles are elastic and walking is easy and powerful.
Third, physical exercise is a magic weapon for health and longevity.
Health comes from persistent exercise, even the infirm can live a long life, and the survivors of "narrow escape" can live for decades! What is the secret of coming back to life? Learn from the suffering of illness and make up your mind to change the unhealthy lifestyle that you have developed for many years, especially taking physical exercise as a protective method, which can not only overcome persistent illness, but also live a long and safe life.
Life lies in its own rhythmic movement. Everyone needs sports suitable for their age. Nutrition and physical exercise are indispensable to the development of babies and the vitality of young people. 1990, the average life expectancy in Changchun was 73.56 years, which was 1. 1 times higher than that in the early days of liberation. One of the important reasons is that people like morning exercises.
1. Exercise can keep the balance of the body's functional system.
The human body is a complex and huge system, and it is an organic whole with coordinated and orderly physiological functions controlled by the brain. When all the systems of the body work normally, the human body will be healthy. If any link is not coordinated, you will get sick.
① The main systems of human body are: brain and central nervous system, cardiovascular system, respiratory system, immune system, digestive system, endocrine system, exercise system, urogenital system, etc. , including organs and tissues with different division of labor.
A professor at the University of Tokyo in Japan put forward this theory; In order to be healthy, we must keep the balance of the three functional systems. The first system is breathing, circulation, digestion, sexual function and so on. , is the most basic functional system to maintain life activities. In the second system, the functional system responsible for exercise includes the functional systems of bones, muscles, nerves and five senses. The third system is a functional system to maintain people's emotional, reaction, will, intelligence and other nerve activities.
② The influence of physical exercise on the functional system of human basic life activities.
cardiovascular system
Exercise function makes sinus bradycardia, for example, the heart rate of high-level athletes is only 36-40 beats per minute; Exercise can increase the cardiac stroke output; Exercise can also make the heart more athletic. Athletes' hearts have rich shapes, strong contractility and high heart reserve. The heart is the main organ of the human body. It is not heavy, accounting for 1/200 of the body weight, but it bears the heavy responsibility of blood supply to the whole body. General tissue can absorb 22% oxygen from arterial blood, while myocardial tissue can absorb more than 70% oxygen from blood, so myocardium is very sensitive to hypoxia. The coronary artery is a vascular system that supplies oxygen to the myocardium. When the heart muscle needs oxygen to make the heart work normally, it must increase the blood supply. If vascular stenosis occurs, there will be poor blood supply, hypoxia and chest tightness, and angina pectoris will occur in severe cases. Coronary artery stenosis develops rapidly in middle age. From the age of 30 to 80, the cardiac output decreased by 30%.
Since 1980s, the incidence of coronary heart disease in developed countries has increased year by year. In the 1990s, it was reported that10 million people worldwide died of heart disease every year, with more men than women, more cities than rural areas, and more mental workers than manual workers, mainly due to smoking and excessive intake of animal fat. The tense pace of life, lack of exercise and environmental pollution.
Hyperlipidemia is also a modern disease. Excessive cholesterolemia in the blood can also lead to chest tightness and myocardial hypoxia. In the past, arteriosclerosis was considered irreversible. Recently, at an annual meeting of cardiovascular experts in the United States, three experts announced: "Under certain conditions, arteriosclerosis can be reversed"-as long as you change your eating habits and exercise properly, hardened blood vessels can become soft. The blood cholesterol and low density lipoprotein of long-term exercisers are significantly lower than those of non-exercisers.
respiratory system
The lung is the main organ of the respiratory system, its function is to supply oxygen and discharge carbon dioxide, and it is the place for gas exchange inside and outside the human body. The gas exchange capacity of the lungs is expressed by vital capacity (the maximum volume of each inhalation), and the unit is ml, which is 3500 ml for men and 2500 ml for women in their prime. Through exercise, people can increase vital capacity, lung ventilation and strengthen breathing intensity. The average person's lung ventilation can be increased to 60 liters/minute, while people who exercise can reach 100 liters/minute or more. Only when you exercise will your lung capacity increase, and people who exercise regularly have greater lung capacity. In the 1990s, the World Health Organization reported: "Due to environmental pollution and smoking habits, the mortality rate of diseases such as lung infection has risen to the ninth place, which must be taken seriously.
digestive system
We all have an experience, that is, no matter how fragrant the food is, we can't eat it, but after proper exercise, we will have a wide appetite and eat well, and we are not afraid of obesity because exercise not only consumes energy, but also increases the supply of oxygen. It is especially helpful for improving liver function.
The liver is the largest organ in the digestive system. Just like a complex chemical plant, it is responsible for secreting bile and promoting the metabolism of protein, lipid pulse, carbohydrate antiques, vitamins and hormones. The liver can produce a variety of coagulation substances, and has many functions such as immunity and detoxification. Because of the heavy task of the liver, the blood flow through the liver is very large every minute, and it can adjust the blood volume according to the different needs of various parts of the body. If the stomach needs more blood to digest, the blood volume will increase when the brain is used.