How periods affect your runs

How your cycle impacts your fitness routine. Photo: Getty Images.

Does the thought of running while on your period make you curl up in the fetal position on the couch because: pain? Or does it bum you out because you think you won't be able to stick to your typically amazing pace?

Well, according to exercise physician Jordan Metzl, neither of those things should be an issue.

Related: Five ways you're hydrating wrong

Why You Don't Want to Run When Aunty Flo Comes to Town
Metzl says that time of the month can make you unmotivated to run since the drop in estrogen and other hormonal fluctuations during your period leave you bloated and tired—not to mention crampy.

Should You Just Run Anyway?
That said, hitting the pavement could actually make your symptoms a lot better. That's because getting your run on releases tons of endorphins that can alleviate your cramps and fatigue, he says. Oh, and fun fact: Running can also help you de-bloat.

Related: Sleep disorders you never want to have

That's right, Metzl says that jogging it out increases the blood flow to your kidneys and increases your glomerular filtration rate, or the speed at which your kidneys separate the waste from your blood, which results in you peeing out the excess water that causes bloating. Boom.

Is Your Pace Going to Suck?
Big news: Not only is it not a bad idea to hit the pavement, good ol' Flo shouldn't inhibit your pace either. "There's no reason why you couldn't do your normal run," says Metzl.

Related: What your exercise cramps are trying to tell you

However, if you are feeling super bleh about lacing up your shoes, Metzl says it's a good idea to run a bit slower or for a shorter distance. "If it’s easier for you to get your mind around doing a smaller run, that's better than doing nothing at all."

How to Be Prepared Next Period
Metzl says a good way to stay on top of your routine all month long is to keep track of how you feel during each run while noting where you are in your cycle.

When you find a pattern, use that as a guide to plan your runs. For example, you can plan short and sweet runs for when you normally feel less than awesome and tougher ones when you're usually on top of your game, he says.