Question

5. Some people in old age complain of stiff joints. What
do you think could be a possible reason for it?​

Answer 1

Answer:

Old people complain about stiff joints, because of their less strength, loss of CaPO4(calcium phosphate) which make their bones weak. Mostly the critical joints have some of the lubricants which make them to loose the joint pain and mostly due to the reduction of this lubricant they may feel pain