TUESDAY, July 7, 2020 (American Heart Association News) -- At her new job as a nurse at a college in St. Louis, Roslyn Harvey spent most of her day sitting at a desk. So, when she felt breathless walking across campus or climbing stairs, she figured she was out of shape.
To get fit, she started walking 15-20 minutes on a treadmill before work. Then one evening, Roslyn came home from work so exhausted she dozed off while sitting at her kitchen table. She jolted awake, surprised at her tiredness and sensing a sharp pain in her left shoulder and pressure in her chest.