The newsroom
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Featured · NewsThe AHA's 2026 review found up to 400 mg of caffeine daily (3–5 cups of black coffee) is safe and may lower cardiovascular risk, but energy drinks pose real heart dangers.
NewsA 200+ study meta-analysis found the afternoon caffeine crash is mostly a myth — regular drinkers show blunted cortisol responses, and the real culprits are adenosine rebound and blood sugar swings.
NewsA 2026 Nature Communications study of 62 adults found both caffeinated and decaffeinated coffee shift gut microbes and lower stress and depression scores, with caffeine uniquely improving attention and decaf boosting memory.
NewsUNSW Sydney researchers showed ultrasonic brewing matches espresso quality at room temperature in under 3 minutes while cutting energy use by ~75%, confirmed by blind taste tests with 100 consumers.
NewsCaffeine modulation — mixing full-caf and decaf coffee in descending ratios across the day — lets most adults enjoy multiple cups without jitters or sleep disruption, keeping intake under the FDA's 400 mg daily guideline.