Which rehabilitation-humidity statement is correct?

• A. Time spent in rehab can be reduced
• B. Rehab time must be doubled
• C. The likelihood of hypothermia increases with humidity
• D. Regulation of body temperature is more difficult

Answer: (D)

High humidity impairs evaporative cooling, the body’s primary way to shed heat after exertion. When sweat doesn’t evaporate quickly, cooling slows and core temperature can rise, making it harder to regulate temperature during and after rehab. That’s why this statement—that regulation of body temperature is more difficult in humid conditions—is the best answer. The other ideas don’t reflect how humidity affects heat balance: rehab time isn’t inherently reduced or automatically doubled in humid heat, and hypothermia is not the typical risk in hot, humid rehab scenarios (that risk is more associated with cold, not with humidity during exertion).