Iron and oxygen work hand in hand to keep your body energized and alive. Iron forms the core of hemoglobin, the protein that carries oxygen from your lungs to every cell. Understanding how your body ...

Your red blood cells are tiny couriers, carrying life-sustaining oxygen from your lungs to every cell and bringing back carbon dioxide for release. Hemoglobin, the iron-rich protein inside them, makes ...

Hemoglobin helps red blood cells carry oxygen to your muscles and tissues. Abnormal hemoglobin levels can be a sign of several health problems. Hemoglobin is a component of your blood that delivers ...