The Effects of
Atrial Fibrillation
On the Body

Afib affects the upper chambers of the heart, called the atria. It’s an electrical disorder that causes rapid electrical signals in the heart that may reach hundreds of beats per minute. The rapid-fire signals interfere with the ability of the upper chambers
to contract in an organized way.

This leads to decreased pumping action and passive blood flow. Blood can even pool within the heart. Some people with afib have no symptoms, while others experience a wide range of symptoms. Afib increases the risk of heart-related disorders and stroke.


Blood pooling in the atria raises the risk of forming dangerous blood clots that can travel to the kidneys, intestines, or the brain, causing a stroke. Read more.

People with afib may feel palpitations and chest pain. Over time, irregular heartbeat can cause a steady weakening of the heart and heart vessels. Read more.

Afib increases the risk of stroke. One sign of stroke is a severe headache with no obvious cause. Lasting side effects of stroke depend on the area of the brain in which stroke occurred. read more.

Shortness of breath and fatigue may be a sign that fluid is backing up into the lungs. read more.

A heart weakened by afib may lead to low blood pressure. Read more.

The effect of afib can be felt in your pulse. It may feel rapid, too slow, or it may simply lack steady rhythm. Read more.

Afib increases risk of stroke. Slurred or strange speech can be a sign of stroke. Read more.

Blood Clots
Heart Problems
Brain Stroke
A Lungful of Afib
Blood Vessels
Afib in the Pulse
Verbal Warning Sign