The knee joint is the [moving axis] connecting the thigh and lower leg bones, and is also the [shock absorbing plate] to buffer the pressure and impact coming along the bones. There is a question, Ding Dong was asked by many friends: when the knee moves, it will make a rattle and be accompanied by pain. Is this arthritis? Does this mean that you have to maintain your knees? Teacher Sun Yueli’s answer can explain everyone’s confusion. Why does the knee joint ring This kind of bounce may be caused by the gas vibration in the joint cavity. The space in the joint cavity is filled with liquid, which enables the joint to work smoothly and smoothly. When the joint Read More …

Dr. Clove wants to do a survey first: In fact, we may all have grown up listening to these [nonsense]. After all, their mass base is very broad, and some people really believe it when they say too much. Today, Dr. Clove refuted the rumor at one time. Rumor 1: One Cell Phone Signal, Radiation Increases Thousand Times, First of all, I would like to emphasize that the radiation from mobile phones is safe, as stated by the World Health Organization as early as October 2014. However, there are too many rumors, which cannot be solved by this sentence alone. Next, we will analyze them in detail. When the signal is very poor, the mobile phone will indeed work at Read More …