Football is called "the world's first sport" because of its strong confrontation, changeable tactics and large number of participants. Football is a sport in which the foot is the main element to control and dominate the ball.

The two teams attack and defend each other on the same rectangular field according to certain rules. The highest organization of football is the International Football Federation, founded in 1904 and headquartered in Zurich, Switzerland.

Are there any rules for game balls?

The match ball shall be round and the outer shell of the ball shall be made of leather or other approved material. The material of the ball is determined at any time by the FIFA Council. Any approved material should be approved by the International Football Council.

Materials that could injure athletes must not be used in construction.

The circumference of the ball must not exceed 71 cm or be less than 68 cm. The ball must not weigh more than 453 grams or less than 396 grams at the start of the game. After inflation, its pressure should be equal to 0.6-1.1 atmospheres (sea level), which is equivalent to 600-1100 g/cm'.

During the game, the game ball shall not be changed without the permission of the referee.

Football is a combination of running and leg movement. In addition to physical fitness, what are the benefits of football?

1. Improve breathing.

Football is a combination of running and leg movement. He needs to use his legs to pass the ball while running. This process can also be seen as a type of aerobic exercise. He needs to run in a row and chase the pass.

This process then strengthens the function of our athlete's respiratory system.

2. Strengthen the leg bones.

You need to run continuously on the field and pass the ball with your legs, so this sport uses the most legs.

3. Relieve stress.

Many people are under tremendous life and work pressure. Too much stress cannot be effectively released and can easily lead to depression. Playing football is an effective way to relieve stress.

4. Cultivate teamwork awareness.

Football is the sport that best embodies team spirit. There are many positions on the field, such as goalkeeper, defender, midfielder, striker, etc., and they must cooperate with each other in order to win the game.

Therefore, people who generally like to play football have strong teamwork ability.

Football is a lot of exercise, not only before and after sports, but also during sports. It is best to drink less water and not drink a lot of water at one time. It is best to drink some light salt water for better hydration.

Finally, you can relax your body with activities like jogging in place and static stretching.

Do you like this sport?