From gruesome self-experimentation to exhausting theoretical calculations, stories abound of scientists willfully surrendering health, well-being, and personal interests for the sake of their work. What accounts for the prevalence of this coupling of knowledge and pain-and for the peculiar assumption that science requires such suffering? In this lucid and absorbing history, Rebecca M. Herzig explores the rise of an ethic of "self-sacrifice" in American science. Delving into some of the more bewildering practices of the Gilded Age and the Progressive Era, she describes when and how science-the...

From the clamshell razors and homemade lye depilatories used in colonial America to the diode lasers and prescription pharmaceuticals available today, Americans have used a staggering array of tools to remove hair deemed unsightly, unnatural, or excessive. This is true especially for women and girls; conservative estimates indicate that 99% of American women have tried hair removal, and at least 85% regularly remove hair from their faces, armpits, legs, and bikini lines. How and when does hair become a problem--what makes some growth -excessive-? Who or what separates the necessary from the...