January 21, 2025

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To Recover From a Heart Attack, Prioritize Sleep

To Recover From a Heart Attack, Prioritize Sleep
Plenty of sleep in the weeks immediately after a heart attack may help you heal and reduce your risk of another heart attack — and a new study suggests that your body may be hardwired to get more rest to aid recovery.

“We have known for several years that good sleep can help prevent a heart attack,” says the senior study author, Cameron McAlpine, PhD, an assistant professor of cardiology at the Icahn School of Medicine at Mount Sinai in New York City. “However, it has been relatively unknown how a heart attack alters sleep and what role sleep plays in healing after a heart attack.”

Deep Sleep Increases After a Heart Attack

To get a better picture of how heart attack may influence sleep, researchers conducted lab experiments in which they induced heart attacks in some mice and left others alone. High resolution imaging and devices implanted in the mice recorded data on brain activity and sleep patterns.

When mice had heart attacks, they had a threefold increase in deep sleep with slow brain waves for about a week afterward, according to the study’s findings, which were published in Nature on October 30.

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