Medical, nutrition & mental wellbeing
National Sleep Foundation — 2025 Annual Sleep in America Poll
The National Sleep Foundation’s annual poll, covering 4,800 adults across six countries, paints a concerning picture: 62% of adults report their sleep needs are not being met on weeknights, up from 45% in 2019. The report includes country-by-country breakdowns, age and gender analysis, and practical recommendations.
Dr. Matthew Walker, professor of neuroscience at UC Berkeley and author of Why We Sleep, joins us for a wide-ranging conversation about what happens in the brain during sleep, why modern life is destroying our sleep quality, and practical steps anyone can take tonight.
This is essential listening for anyone who has ever felt tired — which is to say, everyone.
Wild swimming and cold-water immersion have exploded in popularity. A 2024 RCT found that twice-weekly cold-water immersion reduced depressive symptoms by 30% over eight weeks — comparable to low-dose antidepressants.
A 20-year longitudinal study tracking 11,000 adults has found that those who consumed more than four servings of ultra-processed food per day showed cognitive decline equivalent to four years of accelerated ageing by their late fifties.