Interval Training: How to Get Faster at Anything

When I was a track coach, I designed most of my practices to focus on interval training. Instead of running the entire distance of the races my runners participated in, they would run only a fraction of those distances at speeds that would total a personal record.

The idea is that you train your body and your mind to run at a certain speed. If you run the full distance during practice, but your pace is slower than your personal record then you train your body and mind to run slower.

A 400m ru...