Coffee is on your side. Mostly.
Coffee and tea drinkers live longer in every big cohort. The catch is the sugar, the cans, and the 4pm cup that eats your sleep. Five honest minutes to see which side of the pattern you are on.
If your heart races or pounds after caffeine, talk to a clinician.
The good news is real.
Coffee at 3 to 5 cups a day tracked with 10 to 15% lower mortality across 402,260 adults. Green and black tea show the same pattern. Decaf too, so it is not just the caffeine.
The pattern has edges.
Energy drinks raised blood pressure and stretched the QT interval where plain caffeine did not. Dessert-coffees carry a sugary drink load. And a cup 6 hours before bed still erased over an hour of measured sleep.
Five honest minutes.
Take the caffeine check. The result is looks fine / worth a look / loud. That is a mirror, not a medical label.
One thing. Not a protocol.
Pick one for 7 days: a caffeine curfew 8 hours before bed. Or one can swapped for plain coffee or tea. Skip the cold-turkey detox. Small enough to actually do.
See where you are.
Start the caffeine check below. If your heart races after caffeine, talk to a clinician.
Based on
- • Freedman et al., NEJM 2012 — coffee 3–5 cups ≈ 10–15% lower mortality in 402,260 adults
- • Kuriyama et al., JAMA 2006 — green tea ≥5 cups ≈ 16% lower mortality (Ohsaki cohort)
- • Inoue-Choi et al., Ann Intern Med 2022 — black tea ≥2 cups ≈ 9–13% lower mortality
- • Shah et al., JAHA 2019 — energy drinks raised BP and prolonged QT vs matched caffeine
- • Drake et al., J Clin Sleep Med 2013 — caffeine 6h before bed cut sleep by over an hour