Imma says intellectual... Considering that intellectual deals with the Brain, skills, etc, I would say it is the best choice because reading helps in the development of the brain.
The 20 minute physical activity I performed was doing yardwork. It was fairly easy to do, besides a lot of bending down involved to pick up sticks. I did it in my front and backyard for a bit over 20 minutes, and no one did it with me.
It is an autoimmune disease that affects the joints and mostly the involved is of wrists and hands.
The cause of this condition is unclear .
The mechanism is that the defense cells of the body attacks its own healthy cells .In this case joints and bone, that cause thickening of the joint capsule leading to inflammation and pain .
Symptoms :-
swelling of joints
tender joints
stiffness of joint , that can worsen after sometime of inactivity
