Under extreme heat conditions, the body's organs begin to shut down. The brain, too, is affected by reduced blood flow. That's why people in the throes of heat illness begin to make poor, often life-threatening decisions.
Russia has agreed to build a nuclear power plant in Venezuela, part of its efforts to expand its global clout and counter U.S. influence in Latin America.
Facebook has issued a mea culpa for seeking to coax reporters to write critically about the privacy implications of Social Circle, a search feature from its rival, Google.
McDonald’s — battered by almost constant criticism of its negative nutritional and environmental impacts — is attempting to turn the tide by opening its first “green” restaurant.
How you move can give away a lot. Maybe too much, if the wrong person is watching. We think, for instance, that the way we walk can influence the likelihood of an attack by a stranger.
"We're providing them with bigger and bigger challenges, so you've probably seen raccoon-proof garbage cans to try to keep them from figuring things out. But they always do, and we're actually shaping an uber-raccoon."