28/09/2025
SLEEP - why it’s important
Here are some key takeaways:
• Prioritise sleep: Both quality and duration matter.
• Recommended duration: Most adults need 6–9 hours; older adults may require slightly less.
• Daytime sleepiness: If you sleep 7–8 hours but still feel excessively tired or nap often, seek medical advice.
• Sleep thresholds: 5–6 hours is considered a “caution zone” by the National Sleep Foundation.
• Consistency matters: Regular bedtimes and wake-up times support healthy sleep.
Neurologists Andrew Wilner and Andrew Varga discuss the glymphatic system, the brain’s waste clearance system, and how it may reveal why sleep is so important to health.
