6 min read
The longevity industry is built on an appealing promise: We are in control of how long we live. Biohacker Bryan Johnson thinks he will not die (or will at least live to 160), while people are shelling out thousands of dollars for full-body scans to get ahead on their health. All you have to do, they say, is track your biomarkers, take the right supplements, optimize your sleep, and catch a disease before it starts, and you’re on your way to a longer, healthier life.
For years, researchers estimated that genetics explained roughly 20 to 30 percent of lifespan, which was often interpreted to mean that the remaining 70 to 80 percent…
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