An abnormal heart rhythm is when your heart beats too fast, slow, or irregularly. This is also called an arrhythmia. Within the heart is a complex system of valves, nodes, and chambers that control how and when the blood is pumped.
Aphasia is a communication disorder that occurs due to brain damage in one or more areas that control language. It can interfere with your verbal communication, written communication, or both. It can cause problems with your ability to: