Running can feel exhausting, but it shouldn't leave you so gassed you can't get off the couch for the rest of the day or that it takes you a full week to recover from a workout. Too often, that sense ...

Ferritin is a protein that’s produced in the body’s cells, and largely concentrated in the liver and immune system cells. Ferritin stores and releases iron, which is essential for producing red blood ...

At one point or another during our training, we’ve all felt the onset of fatigue, constant tiredness or just that sudden wave of mid-run weakness. While we may chalk it up to an increase in mileage or ...

For me, running with low iron levels was a progressively worsening slog. For years, I attributed relatively vague symptoms – mostly fatigue and heavy legs – to common training mistakes, like improper ...

For me, running with low iron levels was a progressively worsening slog. For years, I attributed relatively vague symptoms—mostly fatigue and heavy legs—to common training mistakes, like improper ...

Nutrition specialist Blanca Martín has shared a video on her social media warning about a protein-related deficiency that can ...