Coffee lovers might be able to breathe a sigh of relief — a new study found that drinking even large amounts of the caffeinated beverage won’t stiffen arteries and harm your heart. From a report: Aficionados have been getting mixed messages about their favorite drink, with some research suggesting that drinking coffee can improve health while other studies advise people to cut down on their consumption. Previous studies suggested that coffee can cause a stiffening of the arteries, putting pressure on the heart and increasing the likelihood of stroke or heart attack. But a new study, funded in part by the British Heart Foundation, found that drinking five cups of coffee a day was no worse for the arteries than drinking less than one cup. The study of more than 8,000 people across the United Kingdom also found that even those who drank up to 25 cups a day were no more likely to experience stiffening of the arteries than someone drinking less than a cup a day.