Altitude

Quite simply, the body freaks out when first exposed to high places: Your brain tells you to breathe more and deeper. Your heart rate increases. But within 24 to 48 hours the level of natural EPO—the hormone that regulates the volume and number of red blood cells—starts to rise, and in time this leads to more red blood cells and acclimatization. Andrew Luks, a pulmonary specialist at the University of Washington with expertise in high-altitude … [Read more...]