Others are too nervous and sedentary for a long time, which will also cause great pressure on the waist. It's best to stand up and exercise for half an hour, but it's not good to move your limbs a little.
The bed used to sleep is also very particular, neither too hard nor too soft, which is easy to cause waist strain. Pay attention to keep warm, once the waist catches cold, it is easy to be damaged. Don't keep the waist in a posture for a long time, otherwise the muscle strength is unbalanced and it is more likely to be damaged.
Doing some simple yoga exercises in bed can also relieve the stiffness of the waist, but if you don't correct bad habits in time, it's mostly useless. It's not too late to mend.
Feet apart, shoulder-level, then slowly step back, pretend to sit in a chair that doesn't exist, and then stand up. Make sure your knees don't exceed the soles of your feet. Your torso should be tightened and your back straight. This action needs to be done in three groups at a time, and then ten times in each group.
Stand with your feet apart and stride out. One foot should take a big step forward. Slowly lower your body, bend your knees slightly, and then resume your standing posture. Next, change the other foot and repeat the previous action. Be careful not to bend more than 90 degrees.