Which of the following is a recommended practice to prevent overheating during MS exercise?

• A. Stay hydrated
• B. Exercise in hot environments
• C. No fluids during activity
• D. High-temperature training sessions

Answer: (A)

Staying hydrated is the best practice because fluids help maintain blood volume and support sweating, which are essential for dissipating heat during exercise. When you sweat, your body can transfer heat from the core to the skin to cool down; enough fluids keep this cooling process efficient and help prevent overheating. For people with MS, overheating can worsen fatigue and other symptoms, so staying well hydrated supports safer, more tolerable activity.

Exercising in hot environments increases heat load, taking fluids away during activity impairs cooling, and high-temperature training itself adds heat stress rather than preventing it.