by Patrick Sullivan

About 735,000 Americans have heart attacks each year, and, according to the American Heart Association, about 15% of them are fatal. But research shows that more than half of all heart attack victims put off getting help by more than two hours, and more than a quarter delay by six hours or more. If you think you could be having a heart attack, don't wait. Follow the steps below and get help.

Know the Signs

The five major symptoms of a heart attack include:

  • Chest pain or discomfort
  • Pain or discomfort in the jaw, neck or back
  • Shortness of breath
  • Weakness and light-headedness
  • Pain or discomfort in the arm or shoulder

Symptoms more common in women include:

  • Nausea or vomiting
  • Breaking out in a cold sweat
  • Unusual fatigue
  • Pressure in the back, jaw, lower chest or upper abdomen,

What to Do

According to the CDC, nearly half of all sudden cardiac deaths occur outside the hospital. That means ignoring heart attack symptoms could cost you your life. Follow these three simple steps:

  1. Call 9-1-1. Don't wait longer than five minutes to get help. Say to the 911 operator, "I think I'm having a heart attack."
  2. Follow the operator's directions. He or she may advise taking aspirin, if there are no allergies. Aspirin can help by inhibiting clots that further restrict blood flow to the heart.
  3. Don't try to drive yourself to the hospital or have someone drive you. Take an ambulance and let the emergency professionals do their jobs. That way diagnosis and treatment can begin on the scene. Plus, you'll more likely get faster treatment at the hospital.

This content originally appeared on Sharecare.com.