This is partially true. There are many contributing reasons but this is one.
It would be a heat cramp because when you have heat cramps you have sharp cramps in your legs and have very moist flushed skin. You can also have a mild fever, usually less than 102 degrees F. Hope this Helps :P
Answer: The greatest decline occurs during the first half hour or phase 1 normally body he is maintained in an unevenly distributed manner the temperature of core tissues is 2°C to 4°C greater than skin temperature
Explanation:
CO2 from the blood is released from the blood cells into the alveoli for exhalation while O2 from the alveoli is received into the blood cells to deliver oxygen to other parts of the body