Energy drinks and stimulant supplements are raising new concerns about heart health after researchers discovered a striking pattern in reports of serious cardiovascular emergencies. Products containing caffeine and other stimulants appeared far more frequently in reports of cardiac arrest, heart attacks, and other heart problems than products without these ingredients. The findings were particularly concerning among younger adults. People ages 18 to 34 accounted for a substantial share of the reported heart problems involving caffeinated products, according to independent, preliminary research presented at the American Heart Association’s Scientific Sessions 2026….
