There are a lot of people who like to snap their fingers. Those people have learned this from a young age. At a young age, the articular cartilage is thick enough, so it is highly flexible.
And when the fingers are stiff, the soft cartilages crackle. Some people like it so much that it becomes a habit to make it sound like this. But in fact, finger joints are often injured. The cartilage in the joints gradually breaks down over the years. If the interosseous cartilage wears away, the bones rub against each other and become painful. So, quit this bad habit while you are still young.
