Seven hours, no more no less. It is the ideal number of hours of sleep what you need per night past quarantine, reveals a study published in the journal Nature Aging. To come to this verdict, researchers from the universities of Cambridge, UK, and Fudan, China, surveyed 500,000 people, aged between 38 and 73, regarding their sleep habits, mental health and well-being. – to be in general. They also looked at their scores on a series of cognitive tests and analyzed their genetic data.
The researchers therefore found that people who slept seven hours a night performed better on tests relating in particular to information processing speed, visual attention, memory and the ability to solve problems. But also in terms of anxiety and depression, these people suffer less than others, light or heavy sleepers.
A good night’s sleep of seven hours, as you age, will preserve your cognitive arousal as much as your mental health. A professor from the University of Cambridge recalls all the same that it is valid at all ages. “Getting a good night’s sleep is important at all stages of life, but especially as we get older”she said.
Antoine F-M
