Edge books. Amazingly gross human body

Describes the gross qualities of sweat, and how it works to benefit a person's health.

Describes the gross qualities of urine, and how it works to benefit a person's health.

Describes what vomit consists of, how the human body manufactures vomit, and why most people think it is gross.

Describes the gross qualities of blood, and how it works to benefit a person's health.

Describes what saliva consists of, describes how the body manufactures and uses it, and examines why some people think it is gross.

Describes the gross qualities of mucus, and how it works to benefit a person's health.