The level of an individual's physical fitness depends on whether he insists on exercising. Under normal circumstances, people who insist on fitness will have much higher physical fitness than the average person.

The so-called physical fitness, traditionally speaking, generally refers to the strength, speed, endurance, agility and flexibility of the human body in activities. Physical fitness is the external expression of a person's physical strength.

Physical fitness is often manifested in people's life, study and labor, and naturally it is also manifested in physical exercise. The quality of a person's physical fitness is related to heredity, but it is more closely related to acquired nutrition and physical exercise. Through the correct methods and proper exercise, we can improve the level of physical fitness in all directions.

Scientific research data show that people with high physical fitness are stronger than ordinary people, which is the result of congenital inheritance and acquired exercise. However, people with high physical fitness may not have high anti-disease ability.

MCA, once a famous fitness instructor, should be well known. She is famous as a fitness instructor, and her physical quality is extremely high, but she still has not escaped the clutches of leukemia.

However, we need not be too pessimistic. We should adhere to the combination of scientific physical exercise and good attitude, reasonable diet and regular work and rest. Only in this way can excellent physical fitness play its greatest role and improve disease resistance!