If your heart beats fewer than 60 times a minute you will be said to have Bradycardia. If the heart rate is very slow, the heart can't pump enough oxygen-rich blood to the body causing symptoms like chest pain, confusion or memory problems, dizziness or lightheadedness, easily tiring during physical activity, fatigue, and fainting (syncope) or near-fainting, shortness of breath. It's important to get a prompt, accurate diagnosis and appropriate care for bradycardia. Call the emergency services if you faint, have difficulty breathing, or have chest pain lasting more than a few minutes.