Five tips for stretching 1. When stretching, you don't have to stretch yourself too tight, which is not conducive to muscle stretching, especially before taking part in sports. You should relax, take a deep breath and stretch your muscles carefully, which can also help you eliminate tension.

2. People are symmetrical. If you stretch only half of your body, the ductility of the other part of your body will be greatly affected, so you should keep stretching on both sides to reduce the difference.

3. How long should stretching exercise last? People of different ages should have different time. The average person only needs to keep 15 seconds. If it is a child, it is usually 7- 10 seconds.