Most of them relax the hips, turn the waist and pitch to dredge the blood circulation of the waist, which plays a role in strengthening the kidney and waist.
Squat down and stand up, bend over to pick up things, these are the simplest actions, and you need to slow down to get better results.
Jogging or walking for more than half an hour every day. When you become interested, you will find such exercise interesting. You can feel the effect within a month.