NPR Science

Men are more apt than women to lose thinking ability as they age, according to new research. And that mild cognitive impairment often leads to dementia.

But people can reduce their risk of mild cognitive impairment by staying healthy and educated, according to Rosebud Roberts, a professor of epidemiology at the Mayo Clinic who led the study. "There is a lot that people can do," she told Shots.

The "Blue Marble" image of Earth snapped by the crew of Apollo 17 in 1972 is one of the most famous photos ever taken. When it appeared, we all suddenly saw the world in a much different way.

In the years since, NASA has added other "Blue Marble" photos to its collection, and has used technology to enhance and sharpen the images.

Magic mushrooms are said to blow your mind, but the hallucinogenic chemical psilocybin, the active ingredient, actually reins in key parts of the brain, according to two new studies.

The memorably vivid emotional experiences reported by mushroom users may flourish because the parts of the brain suppressed by psilocybin usually keep our world view tidy and rational.