Health & Science

An influential federal task force is relaxing its controversial opposition to routine screening for prostate cancer.

In the proposed revised guidelines released Tuesday, the U.S. Preventive Services Task Force says men ages 55 to 69 should decide individually with their doctors whether and when to undergo prostate-specific antigen (PSA) testing.

As the Trump administration considers steps to implement what the president has called extreme vetting of foreigners at the border, one aspect of security screening has already been amped up.

The number of people who have been asked to hand over their cellphones and passwords by Customs and Border Protection agents has increased nearly threefold in recent years. This is happening to American citizens as well as foreign visitors.

In at least 20 state capitols across the country this year, the wireless industry is pushing legislation to streamline local permitting for the next generation of cellular technology.

In Washington state, that's putting the industry on a collision course with cities and towns.

Instead of soaring towers with antennas on top, future cell sites will adorn power poles and streetlights.

Let's say you think you're having a stroke and you call 911 for an ambulance.

In a lot of cities across the country there's a good chance that a firetruck — with a full fire crew including a paramedic — will race to your door.

But that doesn't mean they can deliver the emergency care you might need.

In Chicago, like many cities, the fire department oversees both firefighters and paramedics who work on ambulances.

After you see a case of elephantiasis, you can never forget it.

People's legs, feet and toes swell up so much that they can't walk. Or move easily. The skin thickens and breaks open, creating ulcers and infections.

"It causes so much pain. So much pain," says epidemiologist Christine Kihembo, at Makerere University School of Public Health in Kampala, Uganda.

Stella Nyanzi, one of Uganda's most controversial academics and activists, appeared in court Monday, after being arrested and charged Friday with cyber harassment and the misuse of a computer, for "shaming" the government.

Nyanzi's latest run-in with the 31-year-old regime of President Yoweri Museveni began with a fight for free sanitary pads for school-age girls.

Copyright 2017 NPR. To see more, visit http://www.npr.org/.

AUDIE CORNISH, HOST:

This story starts with a lost email.

Annie Hudson had spent weeks crafting the text. She was documenting tiny elements of a memory — events so ordinary that they would certainly be forgotten, yet so treasured that she wanted to keep hold.

She wanted the email to be perfect. Kept tinkering, revising. It lived in the "Drafts" folder on her iPhone.

Then, came a notice: "Software Update." Annie followed the prompts. Her phone got up-to-date fixes. The draft of the email disappeared.

Most of us have about five dreams each night, though we're not likely to remember any of them.

But a team of researchers has found a pattern of brain activity that seems to reveal not only when the brain is generating a dream but something about the content of that dream.

Health care is a trillion-dollar industry in America, but are we getting what we pay for? Dr. Elisabeth Rosenthal, a medical journalist who formerly worked as a medical doctor, warns that the existing system too often focuses on financial incentives over health or science.

President Trump wants America to use more "clean coal" to make electricity. He hasn't elaborated on what kind of coal that might be.

For the second consecutive year, aerial surveys show severe coral bleaching in the Great Barrier Reef off the coast of Australia.

While severe bleaching events have occurred three other times in the past 20 years — in 1998, 2002 and 2016 — this year marks the first time it's known to have happened two years in a row. Scientists say the damage is caused by higher water temperatures due to global warming.

The Affordable Care Act's worst enemies are now in charge of the vast range of health coverage the law created. They're also discussing changes that could affect a wider net of employment-based policies and Medicare coverage for seniors.

Although Republicans failed last month in their first attempt to repeal and replace the ACA, President Donald Trump vows the effort will continue. And even if Congress does nothing, Trump has suggested he might sit by and "let Obamacare explode."

Most potential new drugs fail when they're tested in people. These failures are not only a major disappointment, they sharply drive up the cost of developing new drugs.

A major reason for these failures is that most new drugs are first tested out in mice, rats or other animals. Often those animal studies show great promise.

But mice aren't simply furry little people, so these studies often lead science astray. Some scientists are now rethinking animal studies to make them more effective for human health.

It's daunting to think about the number of products Apple has created that have transformed how most people use technology: the original Mac with the first mass-produced mouse, the iMac, the iPod, the iPhone, the iPad.

But fast-forward to 2017, and it appears that a lot of innovation is coming from other companies. Amazon has a hit with its Echo, a speaker device that responds to voice commands. Reviewers say Microsoft's Surface competes with the Mac. And now, Samsung's Galaxy S8 smartphone is getting raves because of its battery life and high-end screen.

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