You’re probably not getting enough sleep, but you might not be as far off the mark as you think. Most sleep experts would offer that aiming for between seven to nine hours of snooze time a night is optimal for feeling refreshed and productive the next day. In a new report, however … researchers are closing in on what may just be that magic nightly number—and it’s not nine hours, or even eight as once believed… it’s seven hours of sleep.
The usual caveats apply, and these findings should be taken with a grain of salt. But the results are interesting—especially if you’re the kind of person who struggles with sluggishness throughout the day.
"The lowest mortality and morbidity is with seven hours," [says] Shawn Youngstedt, a professor in the College of Nursing and Health Innovation at Arizona State University Phoenix… "Eight hours or more has consistently been shown to be hazardous."