New Research Shows Why Your Heart Hates an Inconsistent Bedtime

A new study shows when you sleep can matter as much as how long you sleep.

EXPERT OPINION BY JEFF HADEN @JEFF_HADEN

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Sleep duration — how many hours of sleep you get per night — gets plenty of attention, if only because it’s easy to measure. Tons of studies show not getting enough sleep is linked to cardiometabolic disease, a shorter lifespan, a greater risk of mental decline, obesity….

The literature clearly shows that getting enough sleep makes you less healthy now, and more likely to die sooner than you otherwise might.

But duration is only part of the sleep health equation. Sleep regularity is also a major factor. As the authors of a study published last month in BMC Cardiovascular Disorders write (h/t to Brady Holmer’s Physiological........

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