Add Yahoo as a preferred source to see more of our stories on Google. Electrocardiograms, or ECGs, record the electrical activity of your heart. Randy Faris/The Image Bank via Getty Images Your ...
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 ...
(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Virginia Singla, University of Pittsburgh (THE CONVERSATION) Your heart's job is to ...
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