The crying book / Heather Christle.

"In this symphonic work of non-fiction, Heather Christle explores the most human of behaviours: crying. What are tears made of? Why do people cry? And why is this common, crucial act so rarely discussed? Christle unpacks the biological reasons for tears and investigates the influence of crying on art, politics, feminism, race, and culture, all while opening up the intimate personal story of her own tears -- from the suicide of her close friend to her family history of depression to her pregnancies, both planned and unplanned."--From publisher.