It can start with unusual discomfort or breathlessness during a workout or an uphill walk—a feeling many of us experience, and dismiss, the older we get. But medical researchers are learning more ...

New research found changes that could explain why some people with long COVID struggle to exercise. The study found that COVID-19 can cause changes that impact some people on a cellular level. Doctors ...

A new study suggests preload deficiency could be the underlying cause of fatigue and exercise intolerance in people with systemic lupus erythematosus (SLE). Preload deficiency is a condition where the ...

Bradycardia does not often cause symptoms. If symptoms of bradycardia do occur, they may include fatigue, lightheadedness, and exercise intolerance. A slow heart rate in young people or athletes or ...

Please provide your email address to receive an email when new articles are posted on . Sublingual nitroglycerin reduced pulmonary capillary wedge pressure in patients with HF with preserved ejection ...