According to the National Institute of Health, sufficient sleep is required to keep your brain working well and to protect your physical health. It’s when you are asleep that the brain is forming new pathways to help you learn and remember. It’s also when your body is most involved in healing and repair of your heart and blood vessels. Chronic sleep deficiency is tied to heart disease, kidney disease, high blood pressure, diabetes, and stroke. It even increases the likelihood that you will become obese.
We’ve long known that between 7 and 8 hours of sleep seems to be ideal. Most of us assume that means we need about 8 uninterrupted hours if we’re going to feel our best, but at least one researcher is saying we may be wrong.