A stress test measures how well your heart works when put under stress. It is ordered to assess exercise tolerance, see if your heart can respond to demands, or test if heart medications are working.

Before a stress test, you’ll need to avoid food, drink, tobacco, and caffeine for a time. You may also have to stop taking some medications. Your doctor will provide information specific to you, but ...

Cold weather doesn’t just change the landscape outside—it changes what’s happening inside the body too, especially the heart. For men over 55, winter conditions can quietly turn a routine cardiac ...