Coffee and Blood Pressure: What You Need To Know Before Your Next Cup

A cup of coffee raises blood pressure briefly but is not linked to long-term hypertension in most studies.

Caffeine peaks in blood 30 minutes to two hours after drinking and has a 3–6 hour half-life.

Research reviews report short-term systolic increases of about 3–15 mm Hg and diastolic increases of 4–13 mm Hg.

People with very high baseline blood pressure may face higher cardiovascular risk with heavy coffee intake, so discuss consumption with a doctor.