For a program to be most effective, Washington recommends sticking to it for at least four to five weeks before changing it ...

For some runners, the road to racing ends at 13.1 miles. For others, it’s a bucket-list goal to conquer the full 26.2. Moving from a half marathon to a full marathon can be a big step in your running ...

Beth Skwarecki is Lifehacker’s Senior Health Editor and has been writing about health, fitness, and science here since 2015. Beth was the recipient of the 2017 Carnegie Science Award in science ...