I don't know about you, but I'm a little troubled when I hear about people who watch multiple screens. You know what I'm talking about. Maybe you're watching a movie at home while live tweeting, or while keeping track at a ballgame. At least movie theaters are a sacred space, immune to these changes.
Pregnant women hear a lot about things they should avoid: alcohol, tobacco, chemical exposures, stress. All of those have the potential to affect a developing fetus. And now scientists are beginning to understand why.
One important factor, they say, is something called epigenetics, which involves the mechanisms that turn individual genes on and off in a cell.
John Hewitt is a neuroscientist who studies the biology of intelligence. He's also a parent. Over the years, Hewitt has periodically drawn upon his scientific knowledge in making parenting decisions.
"I'm a father of four children myself and I never worried too much about the environments that I was providing for my children because I thought, well, it would all work out in the end anyway — aren't the genes especially powerful?" Hewitt says.
Sure, Bob Newhart may have won his first Emmy for guest-starring as Professor Proton on the hugely popular show The Big Bang Theory, about four young scientists at Caltech. But behind the scenes is a real-life professor, David Saltzberg of UCLA.
Saltzberg studies high-energy particle physics and high-energy neutrino astronomy, using radio-detection techniques when he's not working as The Big Bang Theory's science consultant.
Stephen Crohn, a man best known for staying alive during the early days of the AIDS epidemic, died Aug. 23 at age 66. Throughout his lifetime, the New York artist helped researchers uncover vital clues about HIV and how to stop it.
Crohn's partner was one of the first people to die from AIDS in 1978. Over the years, Crohn watched boyfriends and acquaintances die from the disease. But he never got sick.
Knowing that there was something unique about himself, Crohn volunteered to be studied.
The first time Jackson Landers spotted a black widow spider on his front porch, he was transfixed. The nature writer grew curious about the poisonous arachnids and even kept one as a pet in a jar for months.
"When you're confronted by this deadly, venomous thing day after day, you can't help but become interested in it," Landers tells NPR's Arun Rath.