We spent a day with Bryan Johnson, the biohacker who spends $2 million a year to cheat death.

While most people hit snooze and reach for coffee, billionaire biohacker Bryan Johnson has already begun a marathon of self-optimization. The 47-year-old tech entrepreneur, who spends an estimated $2 ...

For the longest time, my family didn’t have a great relationship with health or exercise. We didn’t eat much nutrient-dense food or pay attention to fitness, and I followed suit. I ate very little ...