Simple sitting posture is a comfortable sitting posture. You can adjust your sitting posture according to your own needs, such as sitting cross-legged on a mat. If you have a knee disease, you can straighten one or both legs forward: sit on the ground and straighten your legs forward; Bend the right calf and place the right leg at the heel of the left thigh; Bend the left calf and put the left leg under the right thigh; You can put a handprint on your hand and put it on your knee. It is best to fold your hands and put your thumb on your leg. The sitting posture in this position can last for 65,438+00 minutes in increments of 20 minutes.