An esquire of the body is someone who helps other people take care of their bodies. Think of it like having a special friend who knows all about why we need to eat healthy food, why we need to exercise, and how to take care of our bodies when we get sick.
Just like your parents or teachers teach you things to help you grow up happy and healthy, the esquire of the body teaches adults how to take care of their bodies so they can stay healthy and happy. This person might work in a doctor's office, a gym, or a spa and they are very knowledgeable about how our bodies work. So if you have any questions about your body, an esquire of the body is just the person to ask!