There are good genetic reasons why having a baby might re-sculpt a woman's brain for the benefit of her baby, said Craig Kinsley, a neuroscientist at the University of Richmond in Virginia.

也有良好的遗传原因解释为什么生宝宝会使妈妈们为了宝宝着想而重塑大脑，克雷格·金斯利说，她是弗吉尼亚·里士满大学的一位神经科学家。

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Professor Kinsley said further tests were needed to see if the findings applied to humans.

BBC: Mothers 'get Alzheimers boost'

Professor Kinsley said he became interested in this area of research after his wife had a baby.

BBC: Mothers 'get Alzheimers boost'

But speaking at the Society of Neuroscience annual meeting in Orlando Florida, Professor Kinsley said he suspected these proteins may be even higher in women who have had children.

BBC: Mothers 'get Alzheimers boost'