Fitness & Movement
HIIT: What It Is, Its Benefits and How It Differs From Steady Cardio
What high-intensity interval training is, what real benefits it brings, whether it really 'burns more fat', and who should be more careful with it.
3 min read
#endurance
4 articles
Fitness & Movement
Zone 2: Why Slow Training Delivers More Than Fast Training
What zone 2 actually is, how to find it without a lactate test, how much time it deserves, and why the polarized model beats the familiar habit of running everything at a medium pace.
6 min read
Longevity
VO2max: The Best Single Predictor of Lifespan
What VO2max measures, how it tracks mortality in 122,007 adults, reference values by age and sex, how to test it, and how much you can realistically raise it.
17 min read
Fitness & Movement
Heart Rate Zones: How to Calculate and Why Zone 2 Matters
How to set heart rate training zones without a lab test, why 220 minus age is unreliable, how the Karvonen method works, and what Zone 2 actually builds.
14 min read