There are certain foods that can hinder sleep and others that can help.
A British study says high doses of caffeine can improve performance by as much as six percent.
The author will soon run a marathon in less-than-perfect shape. He needs all the nutritional help he can get. Here’s what he’s
The world's most widely used drug can make you a better runner.
Competitor Magazine columnist Susan Lacke reflects on lessons learned after 30 days without coffee.
Next to training, proper fueling is the most important aspect to a successful race.