The sinoatrial node is "part of the heart, but a very specialized part of the heart," Mark Anderson told BioWorld Today. The cells that make up the pacemaker are different from normal cells, he ...
Your heart's job is to keep your pulse steady to pump blood throughout your body. Sometimes your heart rate is slower when you're relaxing, and sometimes it's faster when you're exercising or stressed ...
Heart problems are nothing new. Humans have been fascinated by electrocardiography since the era of Hippocrates (via St. Luke's Hospital Cardiology Department). With each passing century, medicine's ...
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