115 year-olds brain worked perfectly

She may have been old, but that didn't mean she wasn't smart.

In fact, post-mortem brain tests in the Netherlands have confirmed that 115-year-old Henrikje van Andel-Schipper was likely every bit as sharp as she appeared to be up until her death in 2005.

The Dutch woman was listed at the time as the world's oldest person.

Van Andel-Schipper donated her body to science. A subsequent physical analysis of her brain disclosed few signs of Alzheimer's or other diseases commonly associated with a decline in mental ability in old age.

Gert Holstege, a professor at Groningen University, says the findings came as something of a surprise.