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 ...

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 ...

Please provide your email address to receive an email when new articles are posted on . A ferritin threshold of 25 µg/L is cost-effective for identifying and treating women with iron deficiency.