You already know that binge drinking is bad for your brain and perhaps your reputation (if you’re prone to beer goggles), but here’s another reason to abstain. A new study shows immediate changes in blood circulation among binge drinkers aged 18 to 25 that resemble what older people with cardiovascular diseases experience, suggesting an increased risk of heart attacks or strokes later in life. U.S. researchers looked at two groups of healthy nonsmoking college students with mostly similar backgrounds. One group had a history of binge drinking (five or more standard drinks in the space of two hours) and the other group shunned alcohol altogether. The binge drinkers had impaired function in the endothelium and smooth muscle cells, which are needed for proper blood flow. The study is to be published online in the Journal of the American College of Cardiology.