Two of the largest ligaments of the wrist are the medial (ulnar) and lateral (radial) collateral ligaments. The MCL passes from the distal end of the ulnar and crosses the wrist to attach to the triquetrum and the pisiform. The LCL passes from the end of the radius, across the joint to the scaphoid.
One of these can be dehydration. Most people in Britain don't drink as much fluid as they need for optimum health. Although, over time, they may inadvertently train themselves not to feel thirsty, the suppressed desire to drink can result in restlessness and a host of minor problems that make sleep difficulties worse.
1 doctor agreed: Dehydration: can definitely cause feelings of dizziness and tiredness, and this can be worsened in the sun. Dehydration can cause a number of other problems including headache, muscle aches and pains, skin wrinkles, drop in blood pressure, passing out. Dehydration increases the likelihood of urinary tract infections and kidney stones. Remaining well hydrated can make a world of difference in how you feel.