The answer to this question would be: vitamin D
The UV is needed by the skin to make previtamin D3. Previtamin D3 or cholecalciferol made from the skin will be changed in the liver into 25- hydroxyvitamin D3 and then sent to the kidney to be changed into 1,25- dihydroxyvitamin D3. The last change in the kidney will active the vitamin D. Vitamin D has a role in the calcium absorption which was will strengthen the bone tissue.
<span>Why are the muscles that move the fingers and wrist located in the forearm?
</span>There are two general sets of muscles that control the fingers and hand/wrist. One set, the intrinsics, is located in the hand proper. The second set, the extrinsics, is located in the forearm.
<span>Consult a doctor who will diagnose and possibly prescribe hormonal treatment<span>.</span></span>
