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1. How Alcohol Tanks Your Heart Rate Variability and Sleep
By Freya Drohan
More and more people are measuring heart-rate variability using fitness trackers—and seeing their HRV numbers plummet after a few drinks the night before. Here’s why.

2. There’s No Space For “Guilt” In Endurance Fueling
By Kylee Van Horn & Zoë Rom
There’s an implicit message floating around endurance sports that equates processed food with “guilt.” Here’s why we think that’s bogus.

3. What We Can Learn About Endurance Fuel From Ancient Greece
By Joe Baur
Step aside, sports gels. These foods have been fueling endurance athletes for centuries.

4. These 7 Foods Are Sneakily Healthier Than You Think
By Matthew Kadey
These seven foods make a great addition to a balanced diet, sneaking in extra helpings of important nutrients.

5. The Runner’s Complete Guide To Electrolytes
By the Editors at Trail Runner Magazine
When electrolyte levels drop too low, performance can suffer. Avoid that dip by dialing in your nutrient intake.

6. I Run With Nothing But Coffee In My Stomach. Is That Destroying My Insides?
By Alex Borsuk Hasenohr
You run super early in the morning and only slug a cup of caffeinated coffee before the run. No food. Is that bad for your stomach?

7. The Do’s and Don’ts of Fueling for Trail Races
By the Editors at Trail Runner Magazine
Elite runners share the rules they stick to when it comes to fueling up before a race…including lessons learned the hard way.

8. Should Runners Supplement With Creatine?
By: Flora Beverley
With all the buzz around this popular supplement, here’s the science behind whether or not endurance athletes should consider it.

9. I’m A Sports Nutritionist And These Are By Far The Three Most-Common Issues I See With My Athletes.
By Alex Borsuk Hasenohr
“You’ve been seeing clients for many years and you’re an accomplished elite mountain athlete. What are three themes you see folks getting wrong in their approach to endurance nutrition?”

10. The Most Googled Trail Running Nutrition Questions, Answered
By: Zoë Rom
Our expert nutritionists answer your most-searched nutrition questions.