Science

The characteristics of gun violence in the U.S. are largely unknown because key federal health agencies have been banned from conducting such research since the mid-1990s.

President Obama, however, wants to change that.

Soup comes in many variations — chicken noodle, creamy tomato, potato and leek, to name a few. But through much of human history, soup was much simpler, requiring nothing more than boiling a haunch of meat or other chunk of food in water to create a warm, nourishing broth.

So who concocted that first bowl of soup?

Have you ever spent a couple of hours working on a craft project — or a presentation for work — and then fallen in love with what you've accomplished? Do the colors you've picked for your PowerPoint background pop so beautifully that you just have to sit back and admire your own genius?

If so, get in line: You're the latest person to fall victim to the Ikea Effect.

Guys, it may be time to get off the couch and hit the treadmill — especially if you want to have kids.

Okay, we all know that exercise is good for us. It can reduce the risk of obesity, diabetes and heart disease, to name a few benefits. Now researchers say physical activity may also help keep sperm healthy and happy.

Come on, this isn't serious, is it? There was an animal that looked like this?

It was a Super Bowl moment like no other. Thousands of fans packing a modern gladiatorial arena, millions more watching on TV screens across the nation and Beyoncé had just reminded us of why she is, well, Beyoncé. The second half play was just getting going.

And then the power failed.

Baby boomers have a reputation for being addicted to exercise and obsessed with eating well.

But that story didn't jibe with what physician Dana E. King and his colleagues see walking through the door of their family practice every day in Morgantown, W.Va.

Last week Hillary Clinton stepped down from her position as secretary of state amidst speculation about whether she'll consider a 2016 bid for the presidency. For decades Clinton has embodied the conflicted status of women in power, with very public roles as a wife, mother and first lady, two terms in the Senate and four years as secretary of state.

In shorthand often used to describe the brain, fear is controlled by a small, almond-shaped structure called the amygdala.

But it's not quite that simple, as a study published Sunday in Nature Neuroscience demonstrates.