Millions have rolled up their sleeves for the COVID-19 vaccine, but why haven’t they rolled up their pants legs instead? Why do we get most shots in our arms? As an associate professor of nursing with a background in public health, and as a mother of two curi…

Why is the muscle so important, and does location matter? And why the arm muscle called the deltoid in the top of the shoulder?Millions have rolled up their sleeves for the COVID-19 vaccine, but why […]