Cognitive Performance

1 article

A person waking up feeling refreshed and alert after 7 hours of sleep, symbolizing improved cognitive function and brain health.

7 Hours of Sleep: The Science-Backed Habit for Brain Health

Sleeping just one hour more or less than seven hours a night can significantly decrease your cognitive performance, according to a Nature study of nearly half a million individuals.

Aisha Bakri·June 16, 2026