Hemoglobin is a key protein found in red blood cells. Its main job is to carry oxygen from your lungs to the rest of your body. When hemoglobin levels drop, the body may not receive enough oxygen to ...

As a lifelong health and fitness enthusiast with 15 years of experience, Rachel MacPherson is passionate about cutting through fads and noise. Her aim is to clearly communicate health information with ...

October 2026You were told 'you don't have anemia,' yet you are always tiredThere is a mark indicating no abnormalities in the 'hemoglobin' column of your health checkup results. However, do you ...

This article predates the current owners of Science Blog. It has not been reviewed under the current editorial process and is kept as part of the archive. Most of medicine runs on the assumption that ...