The New Rules of Marathon Nutrition

Want to get leaner for your next marathon? Active Expert Matt Fitzgerald studied the diets of elite runners for years, and shares their secrets.

By Matt Fitzgerald

The Importance of Running Well

Too many people rush into high mileage training programs and wind up injured. Learn to run well before you run more. Here's how.

By Justin Levine

Is Your GPS Watch Accurate?

If your GPS watch says that marathon you ran was actually 26.5 miles, what should you do? Before you question the race itself, first find out how a...

By Ryan Wood

Why Runners Need Spinning

Want to increase your fitness, but don't necessarily want to run more? Spinning is a great choice for runners; here's why.

By Laura Forman

Why Too Much Running Is Bad for Your Health

When it comes to running and other forms of vigorous exercise, more isn't always better. Rack up too many miles each week and you may actually harm...

By Elizabeth Narins, Women's Health

3 Reasons to Include Recovery Runs in Your Training

Why run easy instead of cross-training or resting? Learn if you need recovery runs, and how to get the most out of these slower efforts.

By  Greg Strosaker

5 Things to Expect As You Train for Your First 5K

Couch to 5K (C25K) programs are a great way to train without getting hurt. If you're nervous about starting, learn what to expect.

By Karen Janos

Distance Running: How Many Miles Should You Run?

One of the "rules" of distance running is that you must run lots of miles. Is this true, and how many miles do you need?

By Jason R. Karp, Ph.D.