The human brain is 2 to 3% of body mass, but consumes 25% of the body's energy. This is "metabolically expensive", and technologies like cooking food were important for facilitating the evolution of our large brains.
(From a TED talk: Heribert Watzke: The brain in your gut)
No one wants to talk about Trump as leaders gather in Rio
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The silence comes as the president-elect signals that he will play hardball
on the international stage.
3 hours ago
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