You have to swim about two kilometers every day to lose weight. Swim as far as possible, that is, you can break through yourself step by step, constantly challenge yourself and make your body better, so that it is easier and faster to lose weight. Swimming can consume our body's energy to a great extent, thus achieving a certain weight loss effect. Although the effect of swimming is not obvious, long-term exercise and reasonable diet can also achieve the goal of losing weight. Swimming will make us feel hungry and increase our appetite, but at this time, we should also control our appetite, eat less and eat lightly, and don't consume too much energy, which will lead to our failure to lose weight.