Human Brains Are Shrinking: BrainHQ Brain Facts
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Kalia'sBrainHQUpdate
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SET NEW GOAL
Set a weekly goal that fits your training schedule.
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CHALLENGE YOUR BRAIN
Distracted WalkingIf you're walking down the street and a clown on a unicycle goes by, would you notice? Research shows the chances are you wouldn't, if you're looking at a cellphone! We all know that looking at our cellphones while driving prevents on our brains from focusing on the road, but it turns out distracted walking due to cellphones is a major problem, too. Why is it dangerous, and where is it most dangerous? Find out‚ and, if it's relevant to you, find suggestions for breaking yourself of your walking-while-cellphoning habit.
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BRAIN FUN FACTS
Human Brains Are ShrinkingEvidence from paleontology suggests that although human brains grew for two million years of evolution, in the past 20,000 years there has been a reversal. Today, the average human brain is quite a bit smaller than it was 20,000 years ago: it's as if a tennis ball of brain material has been removed. Scientists aren't really sure why. Some believe our brains have become more efficient and require less energy, so they don't need to be as big. Others that as more complex societies emerged, each individual did not have to be as smart and flexible to stay alive: there were safety nets to rely on. Still others that it may be because people 'domesticated' themselves, selecting against aggression. |
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