Early Birds Linked to Higher Risk of Cardiovascular Disease, Kyoto Prefectural University Study
10/21/2011 6:50:39 AM
Waking up early may increase your risk of heart attack and stroke, a study in Japan shows. A one-hour advance in the wake-up time of study participants increased the risk of hardening of the arteries by 1.2 times even without a change in sleep duration, according to the results reported by Mayuko Kadono at Kyoto Prefectural University. The study, which analyzed 3,066 healthy adults averaging 57.2 years old, also found people who had difficulty falling or maintaining sleep at night had a higher prevalence of hypertension.
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