Deep sleep is the mentally and physically restorative stage of sleep. How much of it do you actually need?

Nature | 5 min read Heart attacks trigger deep healing sleep Immune cells rush to the brain after a heart attack, promoting a deep sleep that eases inflammation in the heart. Researchers found that ...

Immune cells rush to the brain and promote deep sleep after a heart attack, according to a new study involving both mice and humans. This heavy slumber helps recovery by easing inflammation in the ...

Now that we have wearables tracking our every move, a lot of us can look at stats that supposedly tell us how well we’ve slept the night before. But sometimes, it can feel like your sleep tracker is ...

Researchers have identified the brain circuitry that links deep sleep with the release of growth hormone, revealing how the two regulate each other. The newly discovered feedback loop helps explain ...

Share on Pinterest Might deep sleep play a role in blood sugar control? Image credit: Igor Ustynskyy/Getty Images. Also concerningly, in 2019, 96 million Americans aged 18 and older had prediabetes, ...