06/16/2026
Heat and humidity can significantly worsen Parkinson's disease symptoms. Because the disease can damage the autonomic nervous system, the body’s internal "thermostat" becomes impaired, making it harder to regulate temperature, sweat properly, or maintain blood pressure.
Worsened Motor Symptoms: Heat and dehydration often trigger increased stiffness, tremors, balance impairments, and fatigue.
Autonomic Dysfunction: The body may fail to sweat enough or, conversely, produce excessive sweating, leading to a much higher risk of heat exhaustion or heat stroke.
Blood Pressure Drops: Heat causes blood vessels to widen, which can drastically lower blood pressure, resulting in severe dizziness or lightheadedness upon standing (orthostatic hypotension).
As we moving into the hotter months, be aware that the temperature can impact you differently with Parkinson's.
Some ways to manage the heat include:
Hydrate Constantly: Drink plenty of water throughout the day, as a decreased sense of thirst is common in Parkinson's.
Utilize Cooling Gear: Wear lightweight, breathable fabrics or consider using specialized cooling vests to avoid overheating.
Avoid Peak Hours: Stay indoors with air conditioning during the hottest parts of the day (typically 11:00 AM to 3:00 PM).
