The data shows that the thermal conductivity of water is 26 times that of air.

If heat dissipation in water at the same temperature is more than 20 times faster than in air, it will effectively consume people's heat. The test shows that swimming in water 100 meters consumes heat energy 100 calories, which is equivalent to running 400 meters on land, riding a bike 1000 meters, or skating 1500 meters. In addition, "due to the action of water waves, the human epidermis is constantly rubbed, so that the skin is relaxed and rested, so the skin of people who swim often is smooth and soft." You can try ~~n~~e~~ minus 1 fat 1 tea ~ ~ slimming waist, etc., all of which are very effective ~ ~ and worth recommending.