A patient was convinced that her runny nose indicated a deeper problem. She was right. Her case brought cerebrospinal fluid into the national spotlight.

Esquire, 1940: “Salads are really the man’s department... Only a man can make a perfect salad.”

Even though this physician pre-dated germ theory, he was able to track a London outbreak of cholera to one particular water pump.

Biologists suggest that evolution never stops, even for modern humans. This is especially true in parts of the developing world.

Henrietta Lacks's "immortal" cell line, called "HeLa," is used in everything from cancer treatments to vaccines. A new portrait memorializes her.

Researchers found that Psilocybin and other hallucinogens may prove helpful in their ability to quiet a portion of the brain connected to depression.

3D printing has evolved far beyond printing out a simple item using plastic. For example, scientists Jody Connell and colleagues described an innovative use of the technology to create three-dimensional bacteria cultures.

Researchers have found that Americans experience radically different health outcomes depending on their race and socioeconomic status.

Frederick Hollick's case involved not only his controversial sex-positive arguments, but also the question of who should be privy to medical knowledge about sex.

Synesthesia—a mixing and merging of the senses—is surprisingly common. Studies of the phenomenon can help explain how the brain and sensory system work.