Zone 2 Training Research

Cycling Fitness Leaves a Chemical Signature in Your Blood That Predicts Healthspan A new study from the University of Granada and Leiden University Medi…

Endurance Exercise Remodels the Gut Microbiome to Support Metabolic Health Endurance athletes have long understood the feeling of digestive distress dur…

Running Just Once a Week Can Add Years to Your Life Running participation is linked to a 27% lower risk of dying from any cause, according to a major 20…

How Exercise Slows Immune Aging and Reduces Infection Risk Global declines in physical activity are accelerating a condition known as immune aging, or i…

High-fat feeding proved a more effective test of metabolic flexibility than a single bout of exercise in energy balance, according to a 2026 study using whole-room calorimeters. The research, published in *Physiological Reports*, provides a clearer picture of how best to assess our body’s ability to switch between burning carbohydrates and fats—a core marker of…

Cycling Fitness Leaves a Powerful Molecular Signature in Your Blood A new, large-scale study identifies specific chemical patterns in the bloodstream of…

Introduction Research from sports cardiology is refining our understanding of how the hearts of amateur athletes respond to endurance events

Swimming’s Cardiac Remodeling: A New Study Shows Aerobic and Anaerobic Workouts Shape the Heart Differently New research from the University of Health S…

The Cellular Engine: How Lab Studies of Metabolism Inform Performance For endurance athletes, lactate is more than a marker of fatigue

The Ultimate Low-Impact Aerobic Builder: Why Swimming Is Uniquely Powerful For individuals prioritizing joint health, whether due to a chronic condition…