Solving the Brain's Energy Crisis

  title={Solving the Brain's Energy Crisis},
  author={Ann Gibbons},
  pages={1345 - 1347}
Last month at the annual meeting of the American Association of Physical Anthropologists, researchers debated two solutions to the problem of energetic constraints on brain size and how humans may have evolved a way around them: the expensive tissue hypothesis, which holds that big brains in adults are fueled by the energy saved in humans9 relatively small gastrointestinal tracts (which we can afford because of our high-quality diet), and the maternal investment hypothesis, which proposes that… 
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