Up to 5 cups of coffee a day may be safe, experts say [zPszsXUZmDs]
Coffee lovers may have reason to celebrate. The American Heart Association says up to five 8-ounce cups of black coffee a day is generally safe for most adults. Stay connected with NBC Bay Area online: Bluesky: WhatsApp: Download our mobile app: On iOS: On Android: Watch our 24/7 streaming channel: Sign up for our newsletters: