Julien Raby

Scientists are standing at the threshold of something extraordinary. You could be among the last generation to live a normal lifespan—or one of the first to shatter the 122-year maximum. In a recent episode of his Lifespan podcast, Harvard professor and longevity researcher David Sinclair revealed that the technology to reverse aging isn’t coming—it’s already here. And it’s now being tested in humans for the very first time.

Running every day sounds like a dream for some, a nightmare for others. But what if someone tested exactly what happens to muscle mass, cardio fitness, and body composition when combining daily running with weight training for 30 straight days? Popular fitness YouTuber Jeremy Ethier did exactly that, using MRI scans, VO2 max testing, and multiple performance assessments to track every change.

What if the single most underrated thing damaging your heart right now isn’t what you eat or how much you exercise? It’s how you sleep. According to emerging research, people with poor sleep quality have up to twice the risk of dying from heart disease—even if they sleep the same number of hours as everyone else. In a recent deep dive into sleep science, an MD and research scientist who has studied neurobiology for 14 years reveals that most people are focusing on the wrong sleep metrics entirely.