It’s 11 a.m., which means tech tycoon Bryan Johnson has already consumed his three daily meals, including dinner, and will fast until 6 a.m. tomorrow. By day’s end, he will have ingested more than 100 pills, mostly supplements. He will stop drinking water to ensure a solid night of slumber, which averages 8 hours 39 minutes. How does he know this? Johnson tracks everything.
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Longevity has become an industry, a subject of bestsellers, podcasts and newsletters. But is a life meted out in metrics, often for a price, worth it?
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November 6, 2023 at 6:00 a.m. EST