There are generally three reasons. The first is edema. If you exercise late at night and drink a lot of water after exercising at night, sometimes you will find that your legs seem thicker than before, which is because of edema, but this usually doesn't last long. The second is a long-term situation, that is, you don't stretch your leg muscles after running or some exercise that requires your leg muscles. Another is that your posture is not standardized when you run and exercise alive.

If you drink too much water after eleven o'clock in the evening, not only will your legs get fatter the next day, but your face will be bigger than other times. To be precise, your legs and face should be swollen, so you'd better finish your daily exercise before ten o'clock. Don't do strenuous exercise after ten. You can choose yoga.

? Not stretching your legs after running will lead to the formation of calf muscle blocks, so I feel that my legs are thicker than before. I have a deep understanding of this, because I once lost weight in college, but I didn't have enough time during the day, so I taught myself to run at 9: 30 every time. After running for 40 minutes, it was almost 10: 30, and then I rushed to the dormitory to wash, ignoring the stretching step. At that time, I thought it was not that important. After about ten days, I suddenly found that my calf muscles became bigger and thicker, so stretching after exercise is very necessary and will make your leg lines soft.

Finally, when exercising, some postures are wrong, and these postures are very important for the effect of exercise. Some irregular postures will not only make the legs thicker, but also cause some damage to the legs. In this case, you can choose to search for standardized movements in sports and exercises online.