Rotating Night Shifts Seems to be Hard for the Heart

A long-term study covering 24 years of follow-up using data from the Nurses' Health Studies with almost 190,000 participants reveals those who had a history of working 3 or more night shifts per month for at least 5 years had significantly higher rates of coronary heart disease (CHD) than those who never worked night shift. Nurses who worked night shift for 10 or more years had even higher risk. 

PositiveTip: While not always possible, avoiding night shift may be an important health choice.