After millions of years of evolution, the human brain has started to shrink. Scientists at the University of Wisconsin have described how over the last 20000 years the human brain has lost 150 cubic centimeters.
This change is happening to all races and both sexes. Humans are getting smaller brains. However the scientists say that this doesn't necessarily mean our species is getting stupider, but could mean that our brains are becoming more efficient. Other theories claim it could be due to changes in environment, we have built a world around us that does not put as much evolutionary pressure on use, so the need for large heads is no longer there.
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Original article: Human brain has been 'shrinking for the last 20,000 years', Daily Mail
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