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For all the good aspirin can do in preventing second heart attacks and strokes, taking it daily can boost some risks, too — of ulcers, for example, and of bleeding in the brain or gut.

Maybe You Should Rethink That Daily Aspirin

A small dose of aspirin taken regularly can help prevent a second heart attack or stroke. But too many healthy people are taking the drug for prevention, and for them, the risks may outweigh benefits.

People camp on the sidewalk outside the U.S. Supreme Court Saturday, to attend the Tuesday arguments over gay marriage. The line began forming Friday — four days before the session.

Legal Battle Over Gay Marriage Hits The Supreme Court Tuesday

People have been lining up for days hoping they will be among the lucky ones to get a seat for Tuesday's historic arguments. At issue: whether states can ban, and refuse to recognize, gay marriage.

Feds Say It's Time To Cut Back On Fluoride In Drinking Water

Excess fluoride consumption is leading to tiny white marks on many people's teeth. It's mainly a cosmetic problem, but one that could be solved by lowering the fluoride in drinking water.

An adult deer tick, or <em>Ixodes scapularis</em>. The taiga tick is nearly a clone — only a tick expert could tell the difference.

Don't Trust The Goats; Their Ticks Could Make You Sick

A goat is host to bacteria. A tick visits the goat, picks up bacteria and spreads them to a human. And the bacteria turn out to cause a previously undiscovered disease.

LOOK: Historic Nepal Sites Before And After The Quake

The human toll of the weekend disaster is overwhelming, but the temblor also damaged some of Kathmandu's historic structures.

Chipotle's announcement that it has removed all GMOs from its menu items is part of a growing food industry trend. From left: Nestle chocolates, Chipotle tortillas, Diet Pepsi, Kraft Macaroni & Cheese Dinner, a Subway sandwich. All of these companies have dropped ingredients over the past year in response to consumer demands.

Chipotle Says Adios To GMOs, As Food Industry Strips Away Ingredients

Chipotle's move is the latest example of the food industry ditching ingredients, as consumers demand a say in what's in their dinner. Some of these ingredients are more questionable than others.

Stephen Hawking Says Zayn Malik Could Still Be In One Direction In A Parallel Universe

Millions of hearts were broken last month when Zayn Malik left One Direction, but according to physicist Stephen Hawking, that might not be the case after all.

U.S., Japan Announce Updated Defense Guidelines

The updated 18-year-old guidelines reflect concern over China's growing influence and North Korea's nuclear capability. They also call for Japan to take a more active role in the Asia Pacific region.

A Google sign at the company's headquarters in Mountain View, Calif. Google is launching a two-week-long patent marketplace next month, where sellers can name their own price.

Google Experimenting With Patent Marketplace To Combat Trolls

Google will allow patent holders to "tell Google about patents they're willing to sell at a price they set." Tech firms have been targeted by "trolls" who own patents and charge them licensing fees.

A man stands near collapsed houses in Bhaktapur, on the outskirts of Kathmandu, on April 27, two days after a magnitude-7.8 earthquake hit Nepal. Aftershocks tend to get less frequent with time, scientists say, but not necessarily gentler.

Big Aftershocks In Nepal Could Persist For Years

Saturday's magnitude-7.8 quake released stress that was building for 150 years, scientists say, and it reshuffled tension to nearby faults.

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