Despite many years of experience taking care of heart patients, this physician went into denial when he first felt it while ...

That said, muscle soreness, especially after a new form of exercise, can flare up as much as a day later and last for a week.

On MSNBC, 'The New York Times' Chief White House Correspondent Peter Baker explains President Trump's views and negotiations ...

How could it not? But I knew that plenty of other irritations (such as acid reflux and muscle strain) can cause chest pain. “I don’t have heart disease,” I thought to myself. “This must be ...