Morning or evening workout: which is better for sleep? What the studies show and how long before bed a hard workout should end.
Slept 8 hours and still got a low sleep score? 8 hidden causes (alcohol, late meals, caffeine, blood sugar, environment, training) and how to find yours.
Oura, Apple Watch, WHOOP, Garmin or Fitbit: which measures sleep, HRV, steps, VO2 max and calories best? A ranking by metric, from published studies.
Is weight training safe for children? Based on 30 years of research, we debunk the myths about resistance training for kids and show the real benefits.
The truth about creatine, a supplement with decades of research. Learn how to use it for strength, muscle and brain health, and see the myths debunked.
Understand the difference between physical activity, exercise and sport, and how each one affects health, lab tests and performance.
Weight-loss injections (Mounjaro, Ozempic, Wegovy): what they are, how much weight people lose in studies, side effects and what happens when you stop.
Bioimpedance: what the test measures, if you need to fast, if it measures visceral fat and why it beats the scale. Understand it before measuring.
How much your body burns at rest, why internet formulas get it wrong and how calorimetry measures your real metabolism.
Nutrition doctor or dietitian? Understand the difference, who can prescribe a diet and when to see each professional to take care of your health.