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Beware of the big guys: Red snappers from tropical waters sometimes accumulate high levels of the toxin that causes ciguatera. Go for the smaller fish to avoid it.

Sexually Transmitted Food Poisoning? A Fish Toxin Could Be To Blame

Tropical fish, like red snapper and grouper, can accumulate one of the most poisonous toxins on Earth. People who eat those fish could get ciguatera, an illness with strange neurological effects, such as painful intercourse. And doctors say there's a chance it spreads through sex.

In <em>All Is Lost</em>, Robert Redford plays an unnamed sailor, stranded at sea on a badly damaged yacht.

At 77, Robert Redford Goes Back To His Roots

Redford says filming All Is Lost was a "pure cinematic experience — the way films used to be." He talks with Fresh Air's Terry Gross about how it's been "sort of weird" being known for his good looks, and about how he nearly wasn't cast in Butch Cassidy and the Sundance Kid. (Originally broadcast on Dec. 12, 2013.)

Did Michael Sam Take A 'Huge Risk' To Come Out Before The Draft?

NFL hopeful Michael Sam recently announced he's gay. But is that why his draft stock has reportedly dropped? The Barbershop guys weigh in.

Why 'No One is Running With The President In Missouri'

Washington, D.C. is digging out from the snow, but Congress is already long gone on a two week recess. With Congress on a two week recess, host Michel Martin discusses the latest political news.

They're down there somewhere: The Great Lakes as seen from space on Wednesday. Lake Ontario, which has less ice than the others, is at the lower right. A bit of open water can be seen in Lake Superior, at the upper left.

Even From Space, Near-Record Ice On Great Lakes Is Chilling

This winter's extra-cold temperatures mean that nearly 90 percent of the five lakes' total surface area is covered with ice. That's approaching the record high of nearly 95 percent, set in February 1979. Satellite images help tell the story.

Video games with lots of action might be useful for helping people with dyslexia train the brain's attention system.

Here's One More Reason To Play Video Games: Beating Dyslexia

People with dyslexia take longer to alternate their attention between visual and audio cues, researchers say. That's particularly true if they have to attend to a sound after seeing something. That difference may provide clues to better treatments for dyslexia.

A view of Venus, black dot at top center, passing in front of the sun during a transit in 2012. A quarter of Americans questioned failed to answer correctly the most basic questions on astronomy.

1 In 4 Americans Thinks The Sun Goes Around The Earth, Survey Says

Twenty-six percent in a survey of 2,200 people conducted in 2012 answered that the Sun revolves around the Earth, and fewer than half correctly answered a question about human origins.

An App On The Search For The Secret To Happiness

An app that helps researchers measure happiness? It's here! NPR's Guy Raz from the Ted Radio Hour speaks with social scientist Matt Killingsworth, who has developed the Happy App.

A Love Of Medicine Runs Through Three Generations

Bureaucracy and mammoth student loans weren't part of becoming a doctor for Michael Sawyer's father and grandfather. Still, like them, he feels medicine is a calling. A fourth generation of Sawyers is thinking about whether to carry on the tradition.

Most of us have never been submerged under more than a few feet underwater. But just a few meters down, the water compresses the tissues of your body so that you become more dense. At that point, "You're more likely to sink than float," says Dr. Kevin Fong.

Fresh Air Weekend: 'Extreme Medicine,' Lake Street Dive, 'When We Get Home'

Dr. Kevin Fong practices "extreme medicine" from deep sea to outer space. Lake Street Dive comes out with a new album called Bad Self Portraits. And a military couple describes their long recovery in Plenty of Time When We Get Home.

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