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68 PCB007 MAGAZINE I JANUARY 2024 One of the earliest lessons parents impart to their children is the importance of staying away from electrical outlets. In fact, it's currently at the top of my babyproofing checklist with my first child, and a lesson grounded in our natural inclination to assume that our bodies and elec- tricity are incompatible. However, the truth is quite the opposite. Our bodies produce electricity. Electrical impulses form the foundation of our nervous system, and electric potential literally keeps our hearts beating. So, contrary to popular opinion, our bodies and electricity are not estranged; they coexist in remarkable harmony. is under- What Electricity Tells Us About Our Health standing has pioneered entire fields dedicated to monitoring the electrical activity of our bod- ies. Here, I'll delve into how electricity is inge- niously harnessed to measure our health. The Pulse of Life: Electrocardiogram (ECG) Our hearts are the ultimate electrical power- houses. One of those fields springing up from the intersection of electricity and human phys- iology is electrocardiology. Doctors now spe- cialize in understanding the electrical rhythm of our hearts. eir main tool is the electrocar- diogram, or ECG. With electrodes connected to an operational amplifier, this simple yet The Doctor's In by Henry Crandall, UNIVERSITY OF UTAH/IPC STUDENT BOARD MEMBER