Later, I used several methods, but some of them were useful. I will share them with you. Hanging the horizontal bar, one of physical therapy, stretching the spine. Sleep on a hard bed, this must be done. Sleep on a hard bed all the time, don't use a soft mattress. Keep warm, keep your waist warm, and don't catch cold. Don't do heavy manual labor. Search the internet for aerobics, and then do it.