Harvard Heart Letter

5 warning signs of early heart failure

Heart failure occurs when something damages the heart muscle or reduces the heart’s ability to pump effectively. Therefore, the body’s demands for oxygen-rich blood go unmet. The earliest indicators of heart failure can easily be confused with natural aging. However, a collection of symptoms including fatigue, breathlessness, chest congestion, and ankle swelling should be heeded as a warning to seek medical advice.
To continue reading this article, you must login.
  • Research health conditions
  • Check your symptoms
  • Prepare for a doctor's visit or test
  • Find the best treatments and procedures for you
  • Explore options for better nutrition and exercise
Learn more about the many benefits and features of joining Harvard Health Online »