Huntington's disease: is a disorder passed down through families in which nerve cells in the brainwaste away, or degenerate.
亨廷顿病（跳舞病）是一种家属遗传病，缘于年夜脑中的神经元微弱或退化造成的失调混乱。
2
Your brain will not waste energy on language that it doesn't think is useful!
你的大脑是不会在它并不认为有用的语言上浪费能量的。
3
In blind people all this brain power would go to waste, but somehow an unsighted person's brain rewires itself to connect auditory regions of the brain to the visual cortex.