Just because you can run, it doesn't mean that you know how to do it properly.

This systematic review showed that:

50% of runners experience an injury each year that prevents them from running for a period of time, and 25% of runners are injured at any given time.

Running-related musculoskeletal injuries (RRMIs) are common among runners. These RRMIs are usually caused by the application of relatively small loads over many repetitive cycles.

When your form is wrong, because running is a repetitive motion, you are compounding the same mistake over and over—a surefire way to get injured. So it's important to not assume that you know what you’re doing. Running is more complicated than it looks.

I’ve been running for over a decade, and I’ve made almost every mistake possible. I put together this comprehensive guide to help both beginners and experienced runners alike. The sections are presented [...]