Evalyn Coleman

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What stress does to your brain

New research examines the myriad ways chronic stress and anxiety can damage your long-term health<p>Stress can be a dangerous enemy for the brain. In fact, it can have serious effects on your brain's ability to operate properly.<p>While stress appears to have originated from our instinctual "fight or …

The Brain

Travel Photographer of the Year: What was the best?

<b>From the harsh reality of the natural world, to stunning beauty seen at some of the planet's remotest locations - the best images from the latest Travel Photographer of the Year competition are now on show in London.</b><p>For a photograph to stand out from the crowd, says Caroline Metcalfe of TPOTY's …

South America

National Geographic Travel

IBM has built the most powerful computer chips in the world

<i>This post has been corrected.</i><p>Since 1965, we have held onto the belief that computing power will double every two years, as argued in a paper by Gordon Moore, the eventual founder of Intel. But in recent years, scientists have been straining to keep Moore’s Law alive, as we start to approach the …

Moore's Law