By Mandy Oaklander for Prevention.com
If by mid-afternoon you’re filling your fourth caffeinated cup, listen up: you could be in the coffee danger zone. A study released today in Mayo Clinic Proceedings found that drinking large amounts of coffee was linked to a much greater risk of dying in people under 55.
The magic number is 28 cups a week—which may sound like a lot, but not when you consider than the average coffee drinker consumes 3 cups a day. This was determined after researchers studied almost two decades worth of coffee use for more than 43,000 people, from ages 20-87.