According to a study reported on for our in-depth look at pro runners’ mechanics, less experienced runners often put their ...

Kieran Klaassen in Source Code Was this newsletter forwarded to you? Sign up to get it in your inbox. AI made us sloppy because it made us forget how to plan. Planning used to be a non-negotiable part ...

After my first marathon in 2007, I was hooked. I spent the next decade taking on 26.2 miles once or twice a year, usually ...