Joints are the joints between bones, and it is because of them that animals can move around. Animals are able to move around, so joints are very important. Joints can make loud sounds, such as popping, breaking, grinding, and fracturing sounds. The most common of these is the snapping sound, which can occur in the knuckles, knees, ankles, back and neck. Such shots often appear in movies, twisting the neck before a fight and making the sound of breaking. There are several reasons for joint rattles Gas escapes. Joint fluid, which acts as a lubricant, is present in the joints, and the fluid contains oxygen, nitrogen and carbon dioxide. When the joint is squeezed and the joint capsule expands and contracts, the gases are released rapidly, forming bubbles, and there is a ringing sound. This mechanism is what prevents the joint from being squeezed again because it has to wait for the gas to return to the joint fluid before the joint, tendons and ligaments can be squeezed again. When moving, if the posture and position are not right, there will be a ringing sound. This is also a reminder that the position is not right. Rough surfaces. When arthritis occurs, a rough surface develops because of the loss of smooth cartilage, and a rattling sound occurs when rubbing. The first points are physiological joint ringing, and the last point is considered an abnormal state, but it is not considered pathological due to aging. The above is an objective phenomenon, but there is also a subjective phenomenon of joint ringing, because some people especially like to squeeze their fingers and make a crunchy sound. So there has long been a claim that doing so can lead to arthritis. But there is no evidence to support this, and a 2011 study comparing the condition of the knuckles of people who squeeze their joints and those who don’t concluded that squeezing, no matter how many years and how often, does not lead to arthritis in the knuckles. The results of other studies are consistent. A doctor named Donald Unger used his right hand to squeeze the left knuckle every day for 60 years without any adverse effects, and he won the funny Nobel Prize in medicine in 2009 for experimenting with his hand for such a long time. Under normal circumstances, joint ringing is normal and nothing is wrong. Regardless of the cause, joint ringing itself does not need to be treated because it does not cause problems later in life, and there are no special exercises or supplements that can prevent it. What is really noteworthy is when the ringing is accompanied by pain, or when the ringing is accompanied by swelling, both of which require a visit to a doctor, especially for the knee. There are two possibilities for knee ringing along with pain: Meniscal tears. This occurs mainly in young people, especially with sports injuries. Cartilage damage or wear and tear. Wear and tear occurs mainly in middle-aged and older people, most severely with osteoporosis. Cartilage wear is inevitable with age, and joint ringing is not enough to worry about. What is worth worrying about is the health of the knee, because osteoporosis is not treatable, but only preventable. Knee health starts with exercise, at least twice a week, to make the knees and legs strong, especially the muscles that support them. When exercising, warm up and stretch, not too vigorously at first. Exercise shoes should also keep up with your feet and be replaced regularly, as there is wear and tear on the shoes themselves. Second and more important, is to maintain a healthy weight, as being overweight and obese is a major risk factor for osteoporosis. As long as there is no pain or swelling, there is no need to worry about ringing joints.