Terzah recommends On muscle: the stuff that moves us and why it matters by Bonnie Tsui

Beautifully written and so interesting, this exploration of muscle (both physical and metaphorical) weaves together the clinical, the cultural, and the personal to describe our relationship with "the stuff that moves us." It will make you fall back in love with your own body in motion--and inspire you through the stories of others fully living that relationship.
Publisher’s description:
Cardiac, smooth, skeletal--these three different types of muscle in our bodies make our hearts beat; push food through our intestines, blood through our vessels, babies out the uterus; attach to our bones and allow for motion. Tsui also traces how muscles have defined beauty--and how they have distorted it--through the ages, and how they play an essential role in our physical and mental health.