As if climbing a mountain wasn’t hard enough already, forcing the body to acclimate to high altitudes too quickly can not only stop someone from reaching the summit, it can have dire consequences. But altitude sickness doesn’t just affect adrenaline-driven mountaineers.
SICK is a new series that looks at how diseases actually work inside our body. We'll be visiting medical centers and talking to top researchers and doctors to uncover the mysteries of viruses, bacteria, fungi and our own immune system. Come back every Tuesday for a new episode and let us know in the comments which diseases you think we should cover next.