Exercise tips： 1. Keep your arms bent, your toes on the ground, your head slightly raised, look at the ground, tighten your waist, straighten your spine, and keep your head and spine in line. 2. Slowly inhale, pause for a moment when your upper body is about 2 cm off the ground, and then push your arms up back to the starting position to exhale. 3. Beginner exercisers can do 2 sets of 15 to 20, intermediate exercisers can do 3 sets of 20, and advanced exercisers can adjust according to muscle training needs. Control an appropriate amount of exercise and stick to it for a long time, and the intensity gradually increases. Precautions: ★ Before exercising, you need to do warm-up exercises, trot in place for 5 minutes, and sweat a little. Warm-up is to reduce injuries. ★ Exercise should be done in moderation. If you exercise too much, you may experience the following symptoms, such as muscle pain, chest tightness, palpitations, shortness of breath, headache or vomiting, stop training immediately.