In the Western world, many all over the age of about 80 tend to suffer from arthritis.  Unfortunately, this disease is not easily avoided.  The Causes Of Arthritis is discussed and is continually disputed by members of the medical profession.  There it is so much uncertainty.  However, what is not in dispute is that arthritis is caused by calcium deposits on the joints.  The reason for these deposits can vary.  For example, it is not uncommon for an old sports injury to result in excess calcium deposits on the bone which was broken or sprained.  A simple fracture can also lead to calcium deposits which in turn leads to arthritis.