High output and low output heart failure refer to how much blood your heart pumps to your body with each heartbeat. In both cases, the output is not enough to meet your body’s needs. A diagnosis of ...

Decreased cardiac output is when your heart can no longer pump enough oxygen to meet the demands of your body. A rapid heart rate is a common symptom, but there are others, too. Your heart is ...

For children with adenotonsillar hypertrophy (ATH) and obstructive sleep-disordered breathing (OSDB), adenotonsillectomy is associated with a significant reduction in resting heart rate and estimated ...

Carley is a writer, editor and social media professional. Before starting at Forbes Health, she wrote for Sleepopolis and interned at PBS and Nickelodeon. She's a certified sleep science coach and ...