Whether you're preparing for a fitness test, looking to increase your running performance, or simply seeking a challenging and effective way to train, this dynamic workout delivers. By combining ...

We’ve all been there: You’re on the starting line of a race feeling fresh, excited, and ready to show that race who’s boss. So you take off—like really take off—and halfway in, you realize you made a ...

Many runners find pushing themselves in training and racing as one great source of enjoyment for the hobby, which is why once a month in our Runner’s World+ member newsletter we describe a quality ...

Lindsey Ellefson is Lifehacker’s Features Editor. She currently covers study and productivity hacks, as well as household and digital decluttering, and oversees the freelancers on the sex and ...