In 20 12, researchers from Harvard University studied the decades-long tracking data of nearly 650,000 people over 40.

Walking for 75 minutes every week, compared with people who don't exercise, the average life expectancy is prolonged by 1.8 years; Walking fast every week 150 minutes, the average life expectancy is extended by about 4 years (3.4 ~ 4.5 years); People who exercise regularly and maintain normal weight live 7.2 years longer than obese patients who don't exercise; A small amount of exercise can reduce the mortality rate by 20%; Moderate exercise reduces the mortality rate by about 40%.

Second, other benefits of exercise to the human body.

1. Helps sleep.

Modern people are under great pressure and many people suffer from insomnia. In addition, with the growth of age, people's sleep patterns will change and sleep will become shallow. Studies have shown that women who walk four times a week and do other aerobic exercises for at least one hour have a 50% higher sleep quality than women who don't like sports. Therefore, insisting on exercise can be described as a very effective "sleeping pill".

Control your weight and keep fit.

Exercise is the only way to keep healthy. Exercise, especially aerobic exercise, requires burning fat to provide energy. It consumes calories during exercise and has the function of reducing fat. In addition, some strength-based exercises can exercise people's muscles well, enhance their metabolic ability, increase their daily energy consumption, avoid the accumulation of heat to form fat, make muscles feel linear, and make people fit and sunny.

Exercise can improve brain function and intelligence.

People often use "developed limbs and simple mind" to describe people who exercise and keep fit, but in fact, people who love sports are not simple at all. Exercise can not only strengthen people's physique, but also promote brain development, improve and improve brain function, and contribute to intellectual development. During exercise, people can enhance their memory by remembering the movements and essentials of exercise.

4. Reduce the risk of cancer

Lack of exercise is an important cause of obesity. More and more epidemiological evidence shows that obesity will increase the incidence and mortality of some cancers, such as endometrial cancer, breast cancer, esophageal cancer and colorectal cancer. Therefore, persistent exercise and weight control can reduce the risk of cancer.