Heat Intolerance – What It Is and How to Beat It

If you feel dizzy, sweaty, or exhausted when the temperature climbs a few degrees, you might be dealing with heat intolerance. It’s not just “being hot”; it’s a real condition where your body can’t regulate temperature well enough.

Common Triggers & Symptoms

Things that raise your core temp fast—like sunny days, gyms, or hot showers—can set off heat intolerance. You’ll notice rapid heartbeat, headache, nausea, or a sudden urge to sit down and cool off. Some people also get flushed skin or muscle cramps.

A few health issues make it more likely: thyroid problems, multiple sclerosis, heart disease, or certain medications such as diuretics and antihistamines. If you’ve been diagnosed with any of these, keep an eye on how quickly you feel overheated.

Tips to Beat Heat Intolerance

Staying cool is about planning ahead. Drink water often—aim for at least eight glasses a day, more if you’re active. Add a pinch of salt or a sports drink if you sweat a lot; that helps replace electrolytes.

Dress in light colors and breathable fabrics like cotton or linen. A wide‑brimmed hat and sunglasses cut down direct sun exposure. When possible, schedule outdoor chores for early morning or late evening when it’s cooler.

If you have to be inside a hot room, use a fan or portable air conditioner. A cool damp cloth on your neck or wrists drops temperature fast without soaking you.Take short breaks during exercise—walk in the shade, sip water, and let your body recover before pushing harder again. If you feel faint, sit down immediately and elevate your feet.

Some doctors suggest adjusting medications that worsen heat sensitivity. Never stop a prescription on your own; talk to your healthcare provider about alternatives if overheating becomes frequent.

Finally, keep an emergency kit: water bottle, electrolyte tablets, and a phone number for a friend or family member who knows you have heat intolerance. A quick call can help you get help before symptoms turn serious.

By knowing the signs, staying hydrated, dressing right, and tweaking your routine, you can manage heat intolerance without letting it ruin your day.