Heart failure occurs when the heart can't pump blood as well as it should. It can affect either the left side of the heart (left-sided heart failure) or the right side (right-sided heart failure).

Heart failure is a serious health condition, but it does not mean the heart has stopped. It means the heart is not pumping ...

Add Yahoo as a preferred source to see more of our stories on Google. Pain is always disconcerting regardless of where it occurs, but it can be especially worrisome if it emanates from the left side ...

US President Trump's visibly swollen ankles have reignited scrutiny over his health, drawing attention to edema, fluid buildup in tissues. Here's what causes swelling and when it may signal a serious ...