Joint pain “Waja -al -mafasil” is common in elders but may start earlier if there is one or more of:
Phlegm (mucus) imbalance
Obesity
Indigestion
Prolonged exposure to cold conditions
Prolonged exposure to damp conditions
Prolonged exposure to humid conditions
Pain is due to stagnation of bad humour. Interesting, the Chinese Medicine system sees pain as cold/blockage.