Sleep rule may be the easiest wellness upgrade

Experts describe the '7:1' sleep rule: fall asleep for seven hours within the same one‑hour window at least five nights a week; a large study linked consistent seven‑hour timing with a lower risk of early death.

Coverage highlights a simple sleep habit known as the "7:1" rule. The rule asks people to fall asleep for seven hours within the same one‑hour window on at least five nights each week. Experts speaking to Newsweek said timing may matter as much as total sleep hours. The topic follows research that links consistent sleep timing with measures of long‑term health and longevity. Key points: - The "7:1" rule calls for seven hours of sleep beginning within the same one‑hour window at least five nights per week. - A large study by Vitality and the London School of Economics tracked more than 47 million nights and reported an association between consistent seven‑hour timing and a 24% lower risk of early death, along with up to four additional years of life expectancy. - The National Sleep Foundation recommends seven to nine hours per night for adults aged 18–64 and seven to eight hours for those over 65. - Dr. John La Puma said that when people sleep may matter more than how long they sleep. - Dr. Saema Tahir said maintaining timing after a poor night helps keep the internal clock steady, improves sleep efficiency, and may reduce progression to chronic insomnia, and she linked consistent timing to more stable mood and cognitive performance. Summary: Researchers and specialists report that consistent sleep timing, as described by the 7:1 rule, is associated with lower mortality risk and with measures such as sleep efficiency, mood, and cognitive performance. Undetermined at this time.