FRESH MOUNTAIN AIR:
What happens when you spend time at altitude?
After a certain amount of time spent living and training at altitude, your body adapts to the lower oxygen level by producing more red blood cells (erythrocytes; from the ancient Greek "erythros" meaning "red" and "kytos" meaning "vessel" or "jar"). These are the most common blood cells and have many functions, including transporting oxygen around the body. This higher number of red blood cells increases your capacity to take up and transport oxygen, ensuring that the cells receive a better supply of oxygen. This process is triggered when you spend any time at moderate altitudes, even if there is no training involved.