The marathon can often feel like a never-ending puzzle with amateur runners experimenting throughout their lives in the hope of discovering the perfect formula to combat 26.2 miles. The shoes matter, ...

For decades, elite runners have travelled the world to train at high altitude. When oxygen levels in the air are low, the body responds by producing more red blood cells – the cells responsible for ...

After five weeks of regular hot baths, our runners had significantly increased their red blood cell volume. In other words, ...