Haha, it is safe to say that your lumbar spine is not injured. When you get up in the morning, your back hurts, which only means that you are overworked or slightly strained. If it's a lumbar injury caused by exercise, you won't walk home so easily and you won't sleep so easily. At that time, you will know what is awesome.

In order to prevent this from happening, we can only prevent it from the root, that is, when exercising the waist moderately, the waist circumference can actually protect the waist, but it is awkward to exercise.

"Dr. Xiaoqiu"