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 ...
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 ...
Heat intolerance happens when your body has trouble regulating its body temperature. Excessive sweating and fatigue are common symptoms of heat intolerance. Drinking plenty of fluids and staying ...