Answer:
Get in an air conditioned building and get him water.
Explanation:
The man could have a heat stroke, and is probably experiencing some form of heat exaustion. Meaning they well need to cool off and rehydrate. If they are really in pain, tell them to go home and rest for awhile.
Calcium is an important element required for muscle contraction and bone integrity.
The AV valves close first, then the semilunars open and close, then the AV valves open
When a person is more physically fit their blood pressure will lower.
hope this helps!