When You Eat Your Meals Can Affect Heart Health Anything people eat after 6 p.m. can cause negative health effects, A team at Columbia University Medical Center analyzed interviews of almost 13,000 people taking part in a national study. People who said they ate about a third or more of their calories at night had a 23% higher risk of high blood pressure. The summary of the research will be presented at the American Heart Association’s meeting later this month. Nour Makarem, Columbia University researcher, via 'Today' Nour Makarem, via 'Today'