As the saying goes: the old roots of trees decay first, and the old legs of people rot first. When people get old, the accuracy and transmission speed of instructions between legs and brain decrease, which is not as tacit as when they were young.

In fact, from birth to death, legs work all the time. If you don't pay attention to protection, you will naturally fall into disrepair. To live a long and healthy life, protecting your legs is the first step. In fact, many patients with leg problems often have a certain degree of infarction in their hearts and brains.