Heat waves and older adults: Warning signs and how to cool down fast

(Aging Untold) — When a heat wave rolls in, older adults don’t just feel uncomfortable — they can get into danger faster than they expect, even indoors. Aging bodies often don’t regulate temperature as efficiently, and some medications can raise the risk of overheating.

People 65 and older are more prone to heat-related health problems, according to the Centers for Disease Control and Prevention.

What ‘too hot’ looks like in real life

Dr. Rhea Rogers, a board-certified physician, said one of the biggest issues is that the body’s system to cool is less efficient as we get older, which means dehydration and heat illness can build quickly.

“It’s quicker for us to become dehydrated,” Rogers said.

She said families should pay attention to subtle early changes, including behavioral changes that may signal something is off.

Early warning signs you shouldn’t ignore

Rogers said early symptoms can include nausea, headaches or some dizziness. It becomes more urgent if you notice breathing changes.

Another is a lack of sweating.

“One big thing is, they’re not sweating anymore,” Rogers said, because sweating is one of the body’s key cooling mechanisms.

She also flagged confusion as a major red flag, “Especially if you see behavioral changes or confusion.”

Why dehydration is a common tipping point

Dehydration is a warning sign for older adults — and one reason is how hard it can be to catch up once someone falls behind.

“It’s very hard to get the fluids to catch up when you’re behind,” Rogers said. “They don’t have a lot of leeway.”

Dementia adds extra risk during extreme heat

Heat safety matters for everyone, but Sam Cradduck, a gerontologist, noted it can be even trickier when dementia is involved because the brain is the body’s “control center,” including for temperature regulation.

“With dementia, you’re now adding on a two-factor worry,” Cradduck said, explaining that these individuals may be more fragile and more susceptible to heat-related issues.

If air conditioning is limited, here’s a simple cooling strategy

Amy O’Rourke, an aging expert, acknowledged a real-world barrier: some older adults keep the thermostat high to avoid higher electric bills.

If strong air conditioning isn’t an option, Cradduck recommended using cool, damp cloths as targeted relief.

“Wrap a damp cloth around your neck, in your pits,” Cradduck said, focusing on areas where cooling circulating blood can help bring body temperature down faster.

O’Rourke also recommended reaching out to someone who can check on your well-being and getting on a police wellness check list if there is one in your area.

Six key takeaways

1. Heat can become dangerous indoors, especially during prolonged heat waves.
2. Watch for dehydration and subtle behavior changes — they can be early warning signs.
3. Red flags include confusion, breathing changes and not sweating anymore — don’t wait.
4. Older adults can’t “bounce back” as easily once overheated, so act early.
5. Dementia can increase heat vulnerability because it affects the brain’s control of temperature regulation.
6. Cooling cloths on the neck and underarms can help if A/C use is limited.

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