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If you sprain your foot only once in a while, you can blame the uneven ground, pits or ridges; but if you sprain your foot frequently, you should pay attention to the fact that your ankle is unstable and needs exercises to strengthen stability.
External factors are of course very important. For example, the possibility of a normal person spraining his or her ankle on flat ground is very low. However, when we make attributions, we should not only look at external factors, but also look at internal factors. Especially when a problem reoccurs frequently, internal factors more important

Eat more meat and eat more late night snacks