Sleep debt hampers brain function up to a week later, study finds
We’ve all been there: whether it's pulling a late-night study session, nursing a newborn baby at 4 a.m., or working long hours to meet a deadline, a lot can come between you and your pillow. You may chalk up sleep debt as an inescapable part of life. But a growing body of sleep-medicine research is shedding light on just how much damage too little sleep can cause. New research suggests that recovery from sleep deprivation (many days of it, in particular) may not be so easy. The effects of sleep deprivation on the brain’s attention and cognitive processing abilities may linger as long as a week after we’ve returned to a regular sleep routine, warns a new study, published September 1 in the journal PLoS One. Ultimately, you should think twice before you pull another all-nighter. While you may feel refreshed after a subsequent good night’s rest, your body may still feel the effects of your late nights, says James Rowley, MD, a professor of critical care and sleep medicine at Wayne State University in Detroit. This research is more evidence that you can’t quickly make up for lost sleep if you’re chronically sleep deprived, he says. “In the long run, it’s better to avoid the sleep debt in the first place and try to get seven hours of sleep consistently seven nights per week.”