Generally, how many meters you swim at a time varies from person to person. The average adult can swim continuously for about 20 meters at a time.

If conditions permit, you can go there three times a week and wear hairband to protect your hair. Two or three hours at a time.

Suitable for all seasons. Never swim on an empty stomach or when your stomach is bloated.

First of all, swimming is a very good aerobic exercise for the human body, even one of the best exercises for the human body.

Swimming has a certain degree of training for the waist and abdomen, but it is not big. For weight loss, don't even think about it-the effect is minimal. But swimming can really shape the body, improve the muscle structure and improve the heart and lung function. If you want to practice waist and abdomen strength, then I suggest you choose butterfly and webbed swimming. As for the number of times you swim in a week, it depends on your physical condition. It is best to swim once every three days at first, and the density in the back can be gradually increased. Finally, it doesn't matter if you swim once a day or more. The length of each swimming depends on the physical condition and the energy consumption of swimming.