If you got a standard blood test recently and your vitamin D came back "normal," there's a meaningful chance it wasn't. The thresholds most labs use to define sufficiency were calibrated primarily against bone outcomes...
Something has gone wrong with how we experience motivation. Most people who spend time thinking about productivity or mental performance can feel it: a low-grade flatness, a difficulty getting started on things that used to...
Bryan Johnson wakes up at 4:30 AM, eats his last meal before noon, and goes to bed at 8:30 PM. He hasn't had an unplanned meal in years. Every bite of food is measured. He...
The wellness industry has a particular talent for taking things that are real and credible, surrounding them with so much exaggerated marketing that serious people stop taking them seriously, and then selling them at a...
