Irregular sleep patterns may raise risk of heart attack and stroke, study suggests

Sleeping and waking up at different times is associated with an increased risk of heart attack and stroke, even for people who get the recommended amount of sleep, according to new research.

​ Sleeping and waking up at different times is associated with an increased risk of heart attack and stroke, even for people who get the recommended amount of sleep, according to new research. Read More Breaking News, Latest News and Videos | CNN