Athletes Are More Likely to Develop a Heat Illness on Hot

Athletes are more likely to develop a heat illness on hot and humid days. Why?

A) The kidneys do not reabsorb water as well on hot and humid days.
B) The thirst mechanism is not as acute on hot and humid days.
C) In hot and humid weather the body cannot dissipate heat via evaporation of sweat.
D) On hot and humid days, blood flow is diverted away from the extremities, and the body cannot be cooled as fast.