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Drinking too much caffeine can cause a temporary spike in blood pressure, but its role in chronic hypertension depends on individual tolerance.

For most healthy adults, up to 4 cups of tea per day (roughly 400 mg of caffeine) is generally considered safe.

For most people, decaffeinated coffee is highly unlikely to cause heart palpitations, though trace amounts of caffeine may affect those with high.

No, grape juice is not a scientifically proven way to prevent or treat stomach flu (viral gastroenteritis).

Honey water may support better sleep by helping your body use tryptophan to produce melatonin.

Third-party estimates suggest a small Iced Dunkalatte contains about 125 mg of caffeine, but Dunkin’ has not published official numbers.

Some herbal teas may cause or worsen heartburn, particularly those with peppermint or spearmint.

Black coffee with a zero-calorie sweetener generally won’t break your fast for calorie purposes, though individual metabolic responses can vary..

High caffeine intake shows mixed effects on memory: moderate amounts may support cognitive function.

Moderate cold coffee is unlikely to cause constipation due to its fluid content and bowel-stimulating compounds.