Science

Health
3:31 pm
Wed March 19, 2014

Alzheimer's Diagnosis Expanding To Catch Early Warning Signs

Doctors may eventually be able to diagnose "preclinical" Alzheimer's in patients who have abnormal brain scans but who aren't yet showing behavioral symptoms of the disease.
iStockphoto

Originally published on Thu March 20, 2014 7:17 am

Alzheimer's disease isn't what it used to be. After 30 years of having doctors diagnose the disease by symptoms alone, researchers and advocacy groups are calling for new diagnostic criteria that recognize changes in the brain as well as changes in behavior.

The goal is to eventually allow doctors to diagnose "preclinical" Alzheimer's in patients who do not have problems with memory or thinking, but who do have an abnormal brain scan or some other sign that the disease may be developing.

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Shots - Health News
3:17 pm
Wed March 19, 2014

Most U.S. Women Wouldn't Know A Stroke If They Saw Or Felt One

The rupture of a weakened portion of blood vessel (the dark blue spot in this brain scan of a 68-year-old woman) can prompt bleeding and death of brain tissue — a stroke.
Simon Fraser Science Source

Originally published on Fri March 21, 2014 9:04 am

When it comes to treating a stroke victim, every minute counts.

Each moment that passes without treatment increases the likelihood of permanent damage or death. So the first steps to getting help are being able to spot a stroke in yourself or others and knowing how to respond.

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Shots - Health News
2:25 pm
Wed March 19, 2014

Half Of Americans Believe In Medical Conspiracy Theories

Twenty percent of Americans think that cellphones cause cancer and that the government and big corporations are covering this up.
iStockphoto

Originally published on Wed March 19, 2014 5:08 pm

Misinformation about health remains widespread and popular.

Half of Americans subscribe to medical conspiracy theories, with more than one-third of people thinking that the Food and Drug Administration is deliberately keeping natural cures for cancer off the market because of pressure from drug companies, a survey finds.

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The Two-Way
5:07 pm
Tue March 18, 2014

Study: The Chicken Didn't Cross The Pacific To South America

A Filipino chicken vendor in Quezon City, east of Manila, Philippines. Researchers say Pacific island chicken are genetically similar to the variety found in the Philippines, but different from South American chicken.
Rolex Dela Pena EPA/Landov

An analysis of DNA from chicken bones collected in the South Pacific appears to dispel a long-held theory that the ubiquitous bird first arrived in South America aboard an ancient Polynesian seafarer's ocean-going outrigger.

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Krulwich Wonders...
3:43 pm
Tue March 18, 2014

An Imaginary Town Becomes Real, Then Not. True Story

Booklist American Library Association

Originally published on Wed March 19, 2014 4:38 pm

This is the story of a totally made-up place that suddenly became real — and then, strangely, undid itself and became a fantasy again. Imagine Pinocchio becoming a real boy and then going back to being a puppet. That's what happened here — but this is a true story.

It's about a place in upstate New York called Agloe. You can see it here, circled in blue ...

... just up the road from Roscoe and Rockland.

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