Most of us would love an easy longevity hack. Fewer salads. Less treadmill. Something that doesn’t require buying a $400 wellness gadget or pretending we love cold plunges. Well, a new study just handed us one, and it’s the least glamorous habit imaginable. Sleep. The thing we keep sacrificing for one more episode, one more email, one more scroll in the void.

Researchers at Oregon Health & Science University reviewed US survey data from 2019 through 2025 and found that getting less than seven hours of sleep per night had a stronger link to lower life expectancy than diet or exercise. Only smoking ranked higher.

As sleep physiologist Andrew McHill said in a statement, “I didn’t expect [insufficient sleep] to be so strongly correlated to life expectancy. People really should strive to get

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