The Caffeine Paradox: Scientists Reveal the Surprising Truth About Coffee and Blood Pressure

* Caffeine acutely raises blood pressure (by 3-15 points systolic), but habitual coffee drinkers develop tolerance, leading to only modest long-term increases of about 2.4 mmHg systolic and 1.2 mmHg diastolic. * Slow caffeine metabolizers face higher heart attack risks with more coffee, while fast metabolizers clear caffeine efficiently, explaining conflicting study results. * A review of 13 studies involving 315,000 people found that coffee drinking was not associated with an increased risk of developing hypertension, regardless of gender, amount or caffeine content. * A Japanese study found that people with severely high blood pressure (160/100 or above) who drank...