Staying up late may up heart disease risk

Staying up until 2 a.m. and upsetting the body's internal clock might come with serious consequences for lipid metabolism, a U.S. researcher suggests. M. Mahmood Hussain of the State University of New York Downstate Medical Center says circadian rhythm gets thrown off by staying up late or by traveling it may result in high triglycerides - fatty acids in the blood - a risk factor for heart disease. Plasma triglycerides double or triple during the course of the day, reaching their lowest point at night when nocturnal animals eat and are most active