Exercise first, then swim. When you exercise, you should pay attention to putting the anaerobic ones behind. Generally speaking, strenuous exercise is put behind. If you want to exercise to make your body more fit, you must persevere and last for more than half an hour. Because at the beginning of exercise, the body consumes muscle instead of fat.

Swimming is a good exercise. Swimming is a skill that people float upward under the buoyancy of water and make their bodies move regularly in the water by virtue of buoyancy.

Swimming includes butterfly, backstroke (also called backstroke), breaststroke and swift (also called freestyle), as well as synchronized swimming. For beginners, it is better to practice breaststroke first, which is easier to learn.

If you want to practice breaststroke, you can stand upright in the swimming pool and imitate frogs to close their legs, turn their legs and kick. First of all, you can stand by in the swimming pool, then practice with the floating board and do the decomposition action repeatedly to make your legs have muscle memory.

When swimming, you should master the essentials of breathing and movements. After inhaling, bow your head, exhale and swing your arms, and then paddle forward with your hands. When you kick, your body will jump out of the water, and then you can lower your head by inhaling. Relax while swimming, and then keep your body in a straight line.

The pressure of water is much greater than that of air. Holding your breath and exhaling in water is not as simple as on land. You need to practice on land before swimming, and then learn to hold your breath in the water. Don't be nervous in this process.