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Only about a third of U.S. adults have advance directives in place to guide the care they receive if they become too ill to make their own medical decisions.

Only about a third of U.S. adults have advance directives in place to guide the care they receive if they become too ill to make their own medical decisions.

Coloradans can get arrested for driving while stoned. But with no good roadside tools, officers' determinations are more subjective than for alcohol DUIs. Scientists hope to find chemical markers.

Carolyn Murnick and Ashley Ellerin were childhood best friends — but as sometimes happens, they grew older and drifted apart. Then, in 2001, Ellerin was brutally murdered in her Hollywood Hills home.

The words "strong" and "inspiring" are not usually assigned to garden slugs. But slug slime inspired materials scientists to invent a new kind of adhesive that could one day help heal human wounds.

Author Maia Szalavitz argues that it's impossible to destigmatize addiction while also rendering it the only diagnosis in medicine for which the treatment is explicitly moral.

If you died in the Grand Canyon during the 19th century, chances are you were buried where you fell. But in the early 1900s, pioneers found a clearing about a quarter mile from the south rim amidst the ponderosa pine. Park Cultural Program Manager Ellen Brennan said it’s one of the few places that doesn’t have kaibab limestone at the surface.

For the first time, a medically approved birth control app has been certified as a method of contraception. It relies on math, an algorithm and a woman's body temperature to determine fertility.

NASA plans to send people to the Red Planet in the 2030s. In the meantime, a remote location in southern Utah serves as a non-NASA training ground for the Mars-minded.

NASA plans to send people to the Red Planet in the 2030s. In the meantime, a remote location in southern Utah serves as a non-NASA training ground for the Mars-minded.