1. Why are people prone to osteoarthritis of the knee in middle age? The knee joint is the largest and most complex joint in the human body. As we age, the bones of the knee joint wear out over the years and the surrounding ligaments relax, making the joint unstable and the tissues inside and outside the joint susceptible to fibrous adhesions, especially for those who do not like sports. The bone and cartilage tissues undergo proliferative changes, resulting in the formation of bone spurs and narrowing of the joint space. This kind of hyperplasia is a phenomenon of human aging, most people over 40 years old will have osteophytes, only the occurrence of different sites and degrees of hyperplasia, some have symptoms, some asymptomatic. 2.Why do patients with osteoarthritis receive “weather forecasts”? The normal human body is sensitive to changes in the external climate, and about 80-90% of patients with osteoarthritis are sensitive to the climate. Scientific experiments have shown that an increase in humidity and a decrease in air pressure can have a detrimental effect on these patients, and the patient’s response is proportional to the magnitude, frequency and rate of change in air pressure and humidity fluctuations. When external humidity increases and air pressure decreases, intracellular fluid leaks out and human urination increases; when humidity decreases and air pressure increases intracellular fluid is retained in the interstitial space of tissues, and this transfer of fluid is a means of adaptation of the body’s cells to changes in the external environment. The arthritis patients, due to the pathological changes in their joint tissue, making its regulatory function malfunction, so that the diseased tissue can not be with the external climate changes and the intracellular fluid elimination, resulting in local pressure than the surrounding normal tissue, resulting in local discomfort, so it is not difficult to understand that this type of patients can predict the weather changes. 3. Why does climbing mountains and buildings cause knee pain? When a person stands on two legs, the weight of each leg is half that of the body, while one leg has to bear the weight of the whole body when standing. The knee is bent when climbing, with an angle of 80 to 90 degrees to bear the weight of the body and bending the knee is 4-6 times the weight of standing; secondly, climbing is a repeated process, the number of knee movement artificially increased, the joint is heavily loaded, the chances of wear and tear also increased, not only may cause damage to the cartilage, but also make the cartilage can not get enough nutrients, a long time down the cartilage lesions, knee pain can be imagined. Knee pain can also be imagined. 4. Will osteophytes continue to develop indefinitely? After the osteophytes have reached a certain level, they will remain relatively static with age, while the osteophytes in the joint will not develop without restriction due to the limitation of pressure in the joint and the influence of joint activities. 5.Can bone spurs be massaged down or can vinegar soften bone spurs? Patients suffering from osteophytes hope to get rid of the bone spurs through medication and treatment, and some newspapers and TV commercials claim to be able to remove or soften bone spurs with medication or massage them down with techniques. Is this really true? The growth of bone spurs is a defensive reaction to the destabilization of the bone and joint, resulting in a change in the stress of the body. So why are the symptoms relieved by treatment? This is because massage can adjust the pressure relationship between the bone spur and the surrounding tissues and nerves, and drugs can harmonize the blood and qi and unblock the meridians, so that the local congestion, edema and sterile inflammatory reaction disappear, thus achieving pain relief. 6.What is the problem with the sound when the knee joint flexes and extends? Many people with osteophytes in the knee joint can hear a ringing sound when they do knee flexion and extension activities. Generally speaking, when the meniscus disk cartilage rupture, will issue a crisp sound, mostly in young people, with a history of trauma or strenuous exercise, joint pain, weakness, etc.; patellar chondromalacia will issue a rice grinding-like sound, mostly in the middle-aged and elderly, the symptoms are sometimes mild and heavy, the effect of various treatments is not obvious; and chronic synovitis of the knee joint will issue a twisting hair-like sound. 7.What should I pay attention to in the diet of knee osteoarthritis? In terms of diet, you should eat more food containing protein, calcium, collagen, isoflavones, such as milk, dairy products, soybeans, soy products, eggs, fish and shrimp, kelp, black fungus, chicken claws, pig’s feet, lamb shanks, beef knuckles, etc. These can supplement protein, calcium, prevent osteoporosis, and grow cartilage and lubricating fluid of joints, and also supplement estrogen, so that bones and joints can better metabolize calcium and Alleviate the symptoms of arthritis. For obese people, we should control the diet properly, pay attention to adjust the diet structure, reduce the calorie intake, control the weight within the appropriate range, reduce the pressure on the joints and the degree of wear and tear. 8.What are the preventive measures for having osteoarthritis of the knee? Avoid the attack of wind, dampness and cold on the knee joint. Cold can cause vasoconstriction, slow down blood circulation and prevent metabolites from being discharged in time, which often makes pain worse. Therefore, you should pay attention to keeping warm in cold weather and wear a knee brace if necessary. Do not overwork or overload the knee joint, try to go up and down stairs, climb less, stand less, and lift less heavy objects; try to avoid obesity to prevent the knee joint from being overburdened, and for those who are overweight, actively lose weight and control their weight. At the same time, avoid sitting and standing for long periods of time, and change your posture frequently to prevent the knee joint from being fixed in one position and exerting too much force. Those with swollen and painful joints should rest. Avoid activities such as deep squatting, weight bearing, going up and down stairs, etc. It is also best to combine physical therapy and medication. Do not wear high heels, but wear thick-soled and flexible soft-soled shoes to reduce the impact on the knee joint and avoid wear and tear on the knee joint. Proper functional exercise not only relieves joint pain to increase the stability of the knee joint and prevent muscle atrophy in the legs, but also prevents the progression of the disease. According to research, swimming and walking are the best exercises for people with knee osteoarthritis, followed by sit-ups, push-ups, bridge arches and the repeated practice of raising and lowering the two retreats on the supine bed, imitating pedaling a bicycle, are the best exercises for patients, in addition to insisting on doing Bilateral quadriceps static contraction training, that is, take the lying or sitting position, both lower limbs straight, forcefully tense the muscle group in front of the thigh, for 10-20 seconds, relax for 5-10 seconds; repeat 20-30 times; 4-5 times a day, is also one of the best exercises to enhance muscle strength and maintain joint stability.