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.

A new study that used wrist-worn devices tracked more than 70,000 adults and found irregular sleep to be strongly associated with higher risks of serious heart events.

A new study has warned that even if you're getting a full eight hours of sleep per night, going to bed at different times each evening can raise your risk of heart attack or stroke