Fast Talk, ep. 26: Busting cramping's electrolyte myth

For decades (almost a century, in fact), we've been told that cramping is caused by electrolyte imbalance or bad hydration. But new science suggests that this probably isn't why you cramp during exercise. So why do you cramp? It all comes down to something called altered neuromuscular control. And how do you stop it? Well, that's where things get even trickier. Listen in to find out.