Born with only half a brain, Mack can speak normally, graduated from high school and has an uncanny knack for dates. At 27, doctors determined that the right side of her brain had essentially rewired itself to make up for function that was likely lost during a pre-birth stroke. But her childhood and young adult years were fraught with frustration.

“We were surprised to see the extent of the lesion in her brain, which basically took away the left side of her brain,” said Grafman. “There’s some very deep structures remaining, but the surface of her brain, the cortex is 95 percent gone and some of the deeper structures, structures that control movement, are missing. These are all structures that are important for movement, behavior, cognition.”

The only answer, Grafman said, was that Mack’s brain has rewired itself. The remaining half took over some of the essential functions that are normally done by the left, such as speaking and reading. That rewiring, however, came at a cost.




  1. Glenn E. says:

    Some time ago, I saw this documentary about a person that had all but about 10% of their brain die (from some disease or fever). And yet they when on to get a college degree. With very little physical or mental impairment. They say we only use about 10% of our brains, anyway. I guess that person, was using 100% of what they had left of it. It seems to me that a lot of people with 99% of their brains still working, are wasting it watching football games, and Tv game shows like “Deal or No Deal”. How brain dead is that?!

  2. pedro says:

    #20 said: “…the smartest US president in years (since JFK) was Carter.”

    Aaaaaaaaaaaaaaaaaaaaaaaaaaaaaahahahahahahahahaha.

    Thank you soo much for the comic relief.

  3. Mr. Fusion says:

    #22, cherman,

    So how is that goat thing working for you?

  4. pedro says:

    #23 You’re so conFused, it’s delicious. You just made my entire day. Hilarious!



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