In an article with SELF.com, Ashley V. Austin, MD, primary sports medicine physician at HSS, discusses workout pains you shouldn't ignore. 

Sure, a high-intensity sweat session can make your heart pump harder, your breath quicken, and may even cause a burning-like feeling in your lungs and chest. And if you’re going hard, chances are you’re not going to be able to muster enough breath to eke out more than a few words at once, let alone full sentences. But chest pain or shortness of breath that’s severe or that doesn’t improve when you slow down can be a sign of a heart attack or other serious cardiac event, Dr. Austin explained. 

That’s especially true if the sensations feel wildly out of proportion to what you usually experience during a given effort. “A person training for a marathon who runs 80 miles a week and starts having chest pain that stops them from running is worrisome to me,”said Dr. Austin, whereas someone running for the first time and feeling out of breath during their workout isn’t nearly as concerning.

Read the full article at self.com.