In selfies, a woman documented a lump under her skin for weeks before doctors were able to remove it -- and it didn't stay in one place, according to a case report in the New England Journal of Medicine.

Pride Month offers numerous events where members of the LGBT community can celebrate who they are.

Doctors don't know what causes Alzheimer's or how to treat it best, but they have new evidence to suggest that a common virus may play a role in who gets it. The study, out Thursday, is running in the journal Neuron. It suggests the human herpes virus, 6A and 7 to be specific, may have a role in the disease that robs people of their memory and cognitive functions.

Koko, the gorilla who mastered sign language and showed the world what great apes can do, has died.

A pediatrician in Colorado examines young children newly separated from their parents and shares her observations with CNN. She says that while their physical condition was fine, emotionally "they were the opposite of stable."

A 9-year-old boy in Greece permanently injured his left eye when he repeatedly gazed into a laser pointer's green beam, doctors say.

With all eyes on the United States and North Korea, experts warn that biological warfare could be more catastrophic than a nuclear attack.

Although he's older than the Giza pyramids and Stonehenge, the 5,300-year-old mummy of Otzi the Tyrolean Iceman continues to teach us things.