Health

San Antonio de los Cobres // Wikimedia Commons // CC BY 3.0

The villagers of San Antonio de los Cobres drink arsenic-contaminated water—and suffer no ill effects.

A new study finds people will only choose the stairs if the nearest escalator is twice as far away.

It happens at their most fertile stage of the month.

Not getting enough sleep is seriously messing you up.

Norwegian researchers think chronic fatigue syndrome may be caused by antibodies produced to fight off infection.

It’s estimated that greater than 75% of the horses in the US became ill from Horse Flu in 1872-73.

A new study finds more genetic mutations that explain chronic insensitivity to pain.

The BrainPort V100 communicates visual information through electrodes signals felt by the tongue.

The 1955 educational film "Sniffles and Sneezes" explores how germs are spread.

Brightly alerts people with incontinence of when their bladder is expanding.

Blood donation just got a lot more interactive.

A new scan can identify every virus a person has had using just a single drop of blood.

A quick look at the ways we protected ourselves from UV rays before the advent of modern sunscreen will make you thankful that all you need to stay safe in the sun is a friend to do your back.

The key tenets of sexual education in Canada.

Begin your crash course on the little-known mathematical disorder known as dyscalculia with these 11 facts.

A 1000-year-old recipe translated from Old English proves effective at killing MRSA.

(c) 2014 Cable News Network // A Time Warner Company // All Rights Reserved

A team of surgeons work on a patient in the operating theater of London's Charing Cross Hospital while men in the gallery observe the procedure.

Hospital technology has come a long way since the beginning of the 20th century. Which is a good thing, as it means that doctors and nurses wear face masks and surgical gloves.