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The universal sign for ‘Look over there!’ isn’t so common in some cultures. Helena Ohman/Shutterstock.com

The way humans point isn’t as universal as you might think

It was long thought that humans everywhere favor pointing with the index finger. But some fieldwork out of Papua New Guinea identified a group of people who prefer to scrunch their noses.
Most parents are unaware just how easily available ‘hardcore’ porn has become. Chepko Danil Vitalevich/Shutterstock.com

Parents need to start talking to their tweens about the risks of porn

While parents are growing more concerned about their children’s easy access to porn, they often don’t realize just how ‘hardcore’ and violent it has become and how early their kids are seeing it.
Doctors’ visits can be overwhelming for older people. Syda Productions/Shutterstock.com

5 questions to ask your aging parents’ doctors

More than 47 million people age 65 and older live in the US, and many need help accessing health care. Here are some questions that grown children should ask their parents’ doctors.
Money is a crucial target for North Korea’s hacking efforts. rega rega/Shutterstock.com

North Korea’s growing criminal cyberthreat

North Korea’s cyber army is closely controlled by the ruling regime – a key difference from other countries’ cyberattack and espionage groups.
Jonathan Cheever is an Olympic snowboarder – and a plumber. AP Photo/Lee Jin-man

The other feats US Olympians pull off

A lack of federal funding for their training, travel or living expenses leaves many elite American athletes juggling day jobs and scrambling to pay their bills.
The Supreme Court overturned the corruption conviction of former Virginia Gov. Bob McDonnell. AP/Andrew Harnik

It’s getting harder to prosecute politicians for corruption

A legal scholar looks at the new and narrowed definition of bribery by the US Supreme Court. In the future, will politicians doing favors for donors and friends ever be prosecuted for corruption?
Coal miner Scott Tiller works next to a drill in an underground coal mine roughly 40 inches high in Welch, West Virginia. AP Photo/David Goldman

Black lung disease on the rise: 5 questions answered

A recent study found the largest cluster of advanced black lung disease ever recorded among coal miners in central Appalachia. Two doctors who treat black lung patients explain how miners contract it.
Long Island City’s 5Pointz, a mecca for graffiti artists, was demolished in 2014. AP Photo/Frank Franklin II

What the 5Pointz ruling means for street artists

A judge in New York City just awarded graffiti artists US$6.7 million after a developer whitewashed their murals. On the surface, it seems like a huge victory for street artists. But could it backfire?
A student at Marjory Stoneman Douglas High School in Florida speaks to reporters on Feb. 14 after a former student fatally shot multiple people. AP/Wilfredo Lee

Here’s how witnessing violence harms children’s mental health

When children learn about news like the deadly school shooting in Florida, a logical question for them to ask is: Will the same thing happen to me?
Several recent cheating scandals have rocked some of America’s most prestigious high schools. Shutterstock.com

Why students at prestigious high schools still cheat on exams

Despite embarrassing publicity about cheating at top US high schools, academic dishonesty remains a problem. Could focusing on mastery instead of test scores help mitigate the problem?
Could the yearly flu shot become a thing of the past? AP Photo/Darron Cummings, File

Influenza: The search for a universal vaccine

Flu virus mutates so quickly that one year’s vaccine won’t work on the next year’s common strains. But rational design – a new way to create vaccines – might pave the way for more lasting solutions.