Exercise can mitigate memory loss from sleep deprivation

New research suggests that short bursts of physical activity can mitigate the negative effects of sleep deprivation on memory. A study involving healthy adults who remained awake for 30 hours found that 20 minutes of moderate to vigorous indoor cycling provided memory benefits nearly identical to a 90-minute nap.

According to the study published in PNAS, participants who either exercised or napped remembered approximately 22 percent more information than the control group. While both interventions improved memory performance, they affect the brain differently: sleep helps alleviate feelings of fatigue, whereas exercise acts as a temporary boost to brain function without removing the underlying tiredness.

Researchers from McGill University noted that these findings highlight the brain's remarkable flexibility. However, experts emphasize that neither exercise nor short naps should be used as permanent replacements for regular nighttime sleep, though they may serve as useful tools for individuals in shift-work environments.