As a Colorado resident, I run at fairly high elevation and in a lot of sun. Because of that, I have to be extra vigilant about applying sunscreen. With at least 4 days per week of outdoor running, one of those sometimes upwards of 3 hours at a time, wearing sunscreen is vital to keeping my skin safe and healthy. The fact is that you should be applying sunscreen every time you go out for a run. Cloudy days, sunny days, long...
