What are the advantages and disadvantages of swimming

　　benefits of swimming : Swimming can lose weight, increase body resistance, regulate cardiopulmonary function, and has certain benefits in regulating endocrine.

　　Disadvantages of swimming : If you perform a large amount of exercise , will make your muscles very developed. You should know the concept of muscular development for girls. Look at any female professional athlete who doesn't have wide hips, thick legs, and broad shoulders. Otherwise, where would she have the strength to compete against time?

　　Overall, swimming is a healthy Green exercise, if you exercise properly in swimming, this is a good thing. It is recommended that you learn flat breaststroke and exercise at a slow pace to build endurance. Just swim 1,000 meters in about an hour. Even if you don't swim, you can lose weight by soaking in the swimming pool for 4 to 5 hours every day, not to mention that you still swim. I exercise for 6 hours a day and lose 8 pounds in a month. Although I don’t want to lose weight, I still lose weight, so I hope you don’t do too much exercise. Exercise is about mastering a certain amount. If you master this amount, you will be able to do it with ease.

　　Swimming exercises overcome the resistance of water rather than gravity, making muscles and joints less likely to be injured.

　　The action of water during swimming makes it easier for blood in the limbs to flow back to the heart, making it easier for the body to swim. heart rate accelerate. Long-term swimming will increase the mobility of the heart and make it contract powerfully.

　　Swimming can improve body temperature regulation function and prevent cold , if you have a cold, do not swim, otherwise you may easily get myocarditis, etc. disease。

　　Who should not swim?

　　People suffering from serious diseases such as heart disease, high blood pressure, and tuberculosis who cannot tolerate heavy exercise.

　　Trachoma, otitis media, skin disease People with infectious diseases may cause trouble to others.

　　It is not advisable to swim immediately after eating or drinking, because the pressure of water and cold stimulation on the stomach can easily cause cramps. stomach ache , which can cause chronic gastroenteritis over time. You can swim only 40 minutes after a meal.

　　It is not advisable to swim during menstrual period. People who have protective equipment and have swimming habits can swim, but the time should not be too long.

　　Preparation before entering the water

　　If you take a warm bath before swimming and then get in the water, you won't feel so cold. Because bathing in warm water (between 30-40°C) can take away some of the body heat, this will make your body temperature close to the temperature in the pool - usually around 27°C.