Biohacking
Heat Acclimation: The Overlooked Performance Edge
Deliberately training your body to handle heat produces measurable physiological adaptations—some of which...
Zone 2 Cardio: The Longevity Workout, Fact-Checked
Zone 2 - easy, conversational cardio - is a longevity favorite. The fitness-and-mortality link is rock...
Breathwork: The Free Tool With Surprisingly Good Evidence
Slow, structured breathing measurably lowers stress and anxiety, and it is free. Here is what the trials...
Sauna and Heat Exposure: The Cardiovascular Evidence
Regular sauna use is linked to lower cardiovascular and all-cause mortality in large Finnish studies. Here...
Cold Plunges and Cold Showers: Hype vs. Evidence
Cold water immersion is everywhere in biohacking. The evidence supports some benefits (recovery, maybe...
Intermittent Fasting and Time-Restricted Eating: What Works
Intermittent fasting can help with weight and metabolic health, largely by helping you eat less. Here is...
Heart Rate Variability: Training by Your Nervous System
Heart rate variability promises a window into your recovery and readiness—but it's noisier, more personal,...
VO2 Max: The Strongest Predictor of Lifespan
Among all the biomarkers people track, cardiorespiratory fitness may be the single most powerful predictor...