Hemoglobin is a protein molecule found in red blood cells that is responsible for transporting oxygen from the lungs to the body's tissues and returning carbon dioxide from the tissues to the lungs for removal.
The normal values for hemoglobin in humans vary depending on age, sex, and altitude. In adult males, the normal range is usually between 13.5-17.5 grams per deciliter (g/dL), while in adult females, the normal range is usually between 12.0-15.5 g/dL. The normal range may be slightly different in pregnant women, infants, and children.
Hemoglobin plays a crucial role in the human body by ensuring that oxygen is transported to all tissues and organs that need it for proper function.
