Running — electrolytes

What are electrolytes?

We all know it’s important to stay hydrated, but you’ve also probably heard about these things called “electrolytes” that you are supposed to add to your water or take at aid stations. If you’re a new runner, you may be wondering what exactly electrolytes are. If you’ve been running for awhile, you may also be wondering but are hesitant to ask any of your running buddies.

I have been running for 20 years, and have always heard that re-fueling electrolytes can help when you start cramping. I’ve never really tested the theory because I—thankfully—don’t cramp that...