Find out what actually triggers your hot flashes
Flare logs each hot flash or night sweat along with what might have caused it — caffeine, alcohol, stress, poor sleep, spicy food, hot rooms — then shows you which ones actually correlate with your episodes, instead of guessing.
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See your pattern, not just your log
Most trackers only tell you when a flash happened. Flare tracks what came before it too, and after a few days of logging builds a correlation report showing which triggers show up most often — so you can act on your own pattern instead of general advice that may not apply to you.
Common hot flash triggers
Everyone's trigger list looks a little different, but these come up the most:
Alcohol, especially red wine
Alcohol widens blood vessels near the skin (vasodilation), which produces that sudden flush of heat.
Caffeine
Stimulates the same adrenergic pathways involved in your body's temperature response — separate from any effect of hot liquid itself.
Hot beverages, even decaf
Tea, coffee, or soup can trigger a flash purely from temperature, independent of caffeine content.
Spicy food
Capsaicin activates heat-sensing receptors that overlap with the pathways involved in a hot flash.
High-sodium and MSG-heavy meals
Takeout, processed soups, and cured meats are often reported, likely tied to fluid shifts rather than heat directly.
Histamine-rich foods
Aged cheese, cured meats, fermented foods, and red wine can trigger a reaction separate from alcohol content alone.
Sugar and refined carbs
Less about heat directly, more about a blood sugar swing feeding into the same stress response.
Non-menopause causes
An overactive thyroid, anxiety, certain medications (niacin), and an ALDH2 alcohol sensitivity can all cause similar flushing on their own.
General information, not medical advice. If your pattern doesn't match what you'd expect, bring your logged data to a doctor rather than self-diagnosing from a list.
Private by design
No account, no server, no sign-up. Every entry stays on your device. Flare was built this way from day one — your health data is yours, not a data set.
Frequently asked questions
What triggers hot flashes the most?
Alcohol (especially red wine), caffeine, hot beverages regardless of caffeine content, spicy food, high-sodium or MSG-heavy meals, histamine-rich foods, and sugar are commonly reported triggers. Which ones actually apply to you is personal, which is why logging episodes against what preceded them is more reliable than a general list.
Can you get hot flashes without menopause?
Yes. An overactive thyroid, anxiety or panic disorder, certain medications like niacin, and an ALDH2 alcohol-flush sensitivity can all cause similar sudden heat and flushing independent of menopause.
Is Flare free and does it require an account?
Flare is free, requires no account or sign-up, and stores every entry locally on the device only — nothing is sent to a server.