Longform articles on biological aging, longevity research, time perception, and the extraordinary mechanics of how humans measure their lives.
For decades, we've told ourselves that multiplying a dog's age by 7 converts it to human years. It's tidy, memorable, and completely made up. The UC San Diego epigenetic study changed everything.
By the time you're 40, summer feels half as long as it did at 8. This isn't imagination — it's neuroscience. We explore the "proportional time theory" and what it means for how you plan your life.
Studies now show that consistent moderate exercise reduces biological age by 3–9 years in epigenetic clock measurements. We break down the mechanisms, the research, and what 150 minutes a week actually does.
Franz Karl Naegele published his pregnancy dating rule in 1812. Modern ultrasound is more accurate — but Naegele's Rule is still where every pregnancy begins. Here's the history, the math, and its limits.
If you were born on Mars — which would be impossible but bear with us — you'd have your 16th birthday at around 30 Earth years old. A journey through solar physics, orbital mechanics, and cosmic calendars.
Psychologists and educational evaluators know this acutely: standard test norms change at exact age boundaries. A child who is 7 years, 0 months, 0 days is scored differently than one at 6 years, 11 months, 29 days.