Stay Cool, Stay Moving: Hydration and Outdoor Exercise Safety This Summer
- Dr. Stein
- Jun 5
- 3 min read
Summer in New England is short, but we want you to make the most of it! Whether you're running the trails around the Lake or Borderland, playing pickleball, gardening, or just spending more time outside, the warmer months are a wonderful opportunity to stay active. But heat and humidity change the rules a bit, and a few smart habits can be the difference between a great summer and an avoidable trip to urgent care.
Why Hydration Matters More Than You Think
Most people know they should "drink more water" in the summer — but understanding why makes it easier to actually do it. When it's hot, your body sweats to cool itself down, and that fluid loss adds up faster than you'd expect. Dehydration can set in even before you feel thirsty, which means by the time your mouth feels dry, you're already behind.
Early signs of dehydration to watch for:
Fatigue or low energy that seems out of proportion to your activity
Headache, especially later in the day
Dark yellow urine (aim for pale yellow throughout the day)
Feeling lightheaded when standing up
Muscle cramps during or after exercise
For most adults, aim for at least 6–8 cups of water daily as a baseline — more if you're exercising or spending significant time in the heat. Plain water is almost always the best choice. Sports drinks can be useful during prolonged intense exercise (think: more than an hour of hard effort in the heat), but for everyday activity they're unnecessary and often high in sugar.
Who needs to be extra careful:
Older adults — the sense of thirst naturally dulls with age, making it easier to fall behind without realizing it
Young children, who have smaller fluid reserves
Anyone on diuretics, blood pressure medications, or ACE inhibitors
People managing diabetes, kidney disease, or heart conditions
If you or someone you're with experiences dizziness, confusion, stops sweating despite the heat, or has not urinated in several hours — those are signs of serious dehydration or heat illness and warrant prompt medical attention.
Exercising Safely When the Temperature Rises
Staying active through the summer is absolutely worth it, but heat and humidity require some adjustment. When it's hot and muggy, your cardiovascular system works harder than usual to keep your core temperature down. That means your heart rate climbs faster, you fatigue sooner, and your risk of overheating increases.
Practical tips for summer workouts:
Time it right. Exercise in the early morning (before 9 a.m.) or in the evening (after 6 p.m.) when temperatures and UV levels are lower. Midday heat in July is no joke.
Dress for it. Wear light-colored, loose, moisture-wicking clothing. Avoid dark colors and heavy fabrics that trap heat.
Bring water. Don't wait until you're thirsty. Sip regularly throughout your workout.
Slow down. Your perceived effort in 85° humidity is genuinely harder than the same pace at 65° and dry. Adjust your pace or distance accordingly.
Know your limits. If something feels off, stop. No workout is worth a heat-related emergency.
Knowing the Difference: Heat Exhaustion vs. Heat Stroke
This distinction matters, so it's worth knowing:
Heat exhaustion is serious but manageable. Signs include:
Heavy sweating
Weakness, nausea, or dizziness
Cool, pale, or clammy skin
Muscle cramps
If you or someone else shows these signs: stop activity immediately, move to a cool environment, hydrate, and rest. If symptoms don't improve within 30 minutes, seek medical care.
Heat stroke is a medical emergency. Signs include:
Hot, red skin — with little or no sweating
Rapid, strong pulse
Confusion, disorientation, or loss of consciousness
Body temperature above 103°F
Call 911 immediately. Do not try to manage heat stroke at home.
When to Check In With Us First
If you have a heart condition, take beta blockers or other cardiac medications, have been inactive for a while, or are managing a chronic condition like diabetes or hypertension, it's worth a quick conversation before significantly ramping up your summer activity. We can help you set realistic, safe targets based on your specific health picture.
At Sharon Direct Care, that kind of check-in is exactly what membership is designed for. Reach out through the patient portal or give us a call and we'll get you sorted. Enjoy the summer, safely!
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