Struggles with sleep linked to heart disease risk

Adults who get too much or too little sleep may have the beginnings of "hardening" of the arteries, which can be an early sign of heart disease, according to a new study.

"Many people, up to one third or one fourth of the general population, suffer from inadequate sleep - either insufficient duration of sleep or poor quality of sleep," said co-lead author Chan-Won Kim, doctor of Kangbuk Samsung Hospital of Sungkyunkwan University School of Medicine in Seoul, South Korea. Several studies have linked inadequate sleep.....

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