Feeling constantly tired, dizzy, or weak could indicate low hemoglobin, a condition where your red blood cells don’t carry enough oxygen to your body. Hemoglobin is essential for transporting oxygen ...

Beta thalassemia is a blood condition that causes low levels of functional red blood cells, which may sometimes cause mild to severe anemia. Beta thalassemia results from mutations in the HBB gene, ...

Please provide your email address to receive an email when new articles are posted on . In non-anemic patients, there is a U-shaped association between preoperative hemoglobin level and mortality ...

A gene with a significant effect on regulating hemoglobin in the body has been identified as part of a genome-wide association study, which looked at the link between genes and hemoglobin level in ...

Iron-deficiency anemia is a common complication of chronic kidney disease (CKD). It happens when your body doesn't have enough iron. You need iron to make the protein hemoglobin, which helps your red ...

A person with anemia of chronic disease has decreased red blood cells despite having “normal” or increased iron stores in their body. It can occur in people with underlying inflammatory conditions, ...

When your body doesn’t have enough iron, you typically feel it. Most commonly, low iron makes you tired, cold, and short of breath. Your skin may be pale and clammy, too. Here’s why low iron saps your ...

Children can often appear tired or irritable, but when these symptoms become an ongoing problem, it could be a sign of something more serious. Fatigue, pale skin, and even a bad mood can be signs of ...

Lindsay Modglin is a nurse and professional writer who regularly writes about complex medical topics, as well as travel and the great outdoors. She holds a professional certificate in scientific ...

Medically reviewed by Steffini Stalos, DO Key Takeaways If your oxygen saturation level drops below 92%, seek medical help right away. A dangerously low oxygen level can make you feel short of breath ...