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Older Brains Adapt Better to Sleep Loss: Study
2 Nov
Summary
- Older adults' brains show increased efficiency after poor sleep.
- Younger adults' brains enter overdrive with more connectivity.
- Adequate sleep remains crucial for all age groups.
A recent study by Simon Fraser University indicates that the impact of insufficient sleep on the brain may vary significantly with age. Researchers found that healthy older adults' brains appear more adept at compensating for a single night of poor sleep compared to younger adults.
The study, published in Imaging Neuroscience, involved analyzing MRI scans of participants aged 20-30 and 65-75. The findings suggest differing responses to acute sleep deprivation.
Lead researcher Josh Neudorf explained that younger brains exhibited increased connectivity, essentially going into 'overdrive.' Conversely, older adults' brains reduced certain connections, leading to a more organized and efficient network.
This efficiency in older brains helps maintain cognitive function despite sleep loss. However, sleep researcher Nadia Gosselin cautioned that these results are based on healthy individuals under controlled conditions and may not represent those with chronic sleep issues.
Both experts stressed that sufficient sleep is essential throughout life. The study's findings do not endorse skipping sleep for older adults. The research emerges amid renewed attention to sleep patterns in British Columbia, following the province's adoption of permanent daylight saving time.
