What’s the best sleep pattern for hearts?

Regularity, rather than duration, seems to be the key

Keeping to a regular bedtime and wake time may be an important factor in heart and metabolic health among older patients, a study suggests.

People with irregular sleep patterns weigh more, have higher blood sugar, higher blood pressure, and are at more risk of having a heart attack or stroke within 10 years than those who sleep and wake at the same times every day, the authors report.

In their study of almost 2000 older adults, irregular sleepers were also more likely to report depression and stress than regular sleepers.

The US researchers said their findings showed a regular bedtime and wake time were as important for heart and metabolic health among older adults as the length of time they sleep

They used data from people in a longitudinal study, aged between 54 and 93, with an average age of 69. Participants used a wrist-worn device to track sleep schedules for seven days and kept a sleep