Study Finds Biological Factors Drive Sleep Differences Between Sexes
Research on mice reveals females sleep less, wake more often, and have less restorative sleep, challenging long-held assumptions about sleep patterns.
Overview
- University of Colorado Boulder researchers found female mice sleep an hour less per day than males, with more fragmented and less restorative sleep.
- The study highlights biological factors, such as stress and sex hormones, as key drivers of sleep differences, rather than lifestyle or caregiving roles.
- Female mice's sleep patterns align with observations in other species, suggesting evolutionary adaptations tied to caregiving responsibilities.
- Underrepresentation of females in biomedical research risks skewing drug efficacy and safety data, delaying effective treatments.
- Researchers urge equal representation of sexes in studies and re-evaluation of past research to ensure accurate and inclusive findings.