MEDICINE IS FUN.
If a baby waited until its brain was fully developed before birth, it would be in the womb for nearly two years. By then, its head would be too large to fit through its mother’s pelvis. So there is a ‘trade-off’, which has enabled humans to keep both their large brains and upright posture: we are born with underdeveloped brains. Although we are born with most of our brain cells, the connections between them are not completed until the age of two.

If a baby waited until its brain was fully developed before birth, it would be in the womb for nearly two years. By then, its head would be too large to fit through its mother’s pelvis. So there is a ‘trade-off’, which has enabled humans to keep both their large brains and upright posture: we are born with underdeveloped brains. Although we are born with most of our brain cells, the connections between them are not completed until the age of two.

Posted 4 months ago
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  7. panickyintheuk reblogged this from inourbloodinoursouls and added:
    Pretty sure it’s true! I went to a talk by Steve Jones and he said something along these lines, I’d say he knows what...
  8. inourbloodinoursouls reblogged this from jenerally and added:
    there is no source on this but it is cool so i chose to believe it.
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  19. monkeyrat reblogged this from lostsisterhood and added:
    Wow, I didn’t know that. Fascinating.
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