What results in the difference of haemoglobin levels from one person to the other?
The difference in hemoglobin levels between individuals is largely influenced by genetics, diet, age, altitude, and overall health status. Genetics play a significant role in determining an individual's baseline hemoglobin levels, while factors such as iron intake, chronic diseases, and kidney function can also affect hemoglobin levels. Additionally, living at higher altitudes can stimulate the body to produce more hemoglobin to compensate for lower oxygen levels in the air.