① Don't let your knees catch cold: The knee joint is particularly vulnerable to cold because there are fewer blood vessels. Therefore, it is recommended that your knees should not be exposed to the environment below 15 degrees Celsius. Usually you can wear pants or a cloak to keep your knees warm in an air-conditioned room.

② Weight loss: For obese people, pay attention to strengthening exercise, controlling diet and losing weight. The extra weight beyond one's own load will increase the pressure on the joint surface, so losing weight is also a way to reduce the burden on the knee joint.

Second, choose a suitable exercise method; Avoid standing, kneeling and squatting for a long time, and minimize strenuous exercise such as climbing mountains, going up and down stairs and running fast. You can choose swimming, walking, radio exercises and Tai Ji Chuan to protect your knees. You can also exercise the knee joint function properly, such as lifting your legs straight to exercise the knee joint muscles.

Third, supplement joint nutrition: supplementing ammonia sugar is also one of the effective ways to protect the knee joint. The knee joint belongs to synovial joint, and its articular surface is covered with a layer of articular cartilage. Insufficient amino sugar will directly lead to the degradation and wear of articular cartilage, resulting in knee pain and other symptoms.