I march because the incoming administration has declared my body, and the bodies of millions of other Americans, a battleground, and I will not cede this territory.

Kate Horowitz is a science writer, poet, and essayist in Washington, D.C. Her work on illness and disability has appeared in Pacific Standard, Luna Luna, Popular Mechanics, mental_floss, and many others. She tweets @delight_monger. She blogs at thingswrittendown.com.