How High Altitude Affects Your Performance

MAP MY RUN—Whether you’re planning a winter ski trip, training to climb a mountain or looking to do a race at elevation, there are a few key things you need to know about how altitude may affect your body and, ultimately, your athletic performance. Rising several thousand feet above sea level in one day can take a toll on your system, especially if you don’t give yourself enough time to properly acclimate to the thinner air up there.

Read the full story on!