What Happens to Sex Drive after age 100?

Inspiration for Immortal Wanna-be’s.
(thanks to RAven Cohen)

from a Chinese News agency:

Man, 105, seeks wife
>
> A 105-year-old Chinese man has placed lonely hearts adverts in
> newspapers for a new wife.
>
> Gong Duruo, 105, has placed lonely hearts adverts in newspapers for a
> new wife /Lu Feng
>
> Gong Duruo, who was born at Chengde, Hebei province, in 1901, wants a
> wife less than half his age.
>
> Gong, a doctor, said: “First, the woman better have a history of
> doctor practice or learning literature, since I need assistance to
> write a medical book.
>
> “Second, the woman should be younger than 50, and can take care of my
> life.”
>
> Gong has two medical degrees – one from the American State University
> around 1940, the other from the West China University of Medical
> Sciences in 2000.
>
> He currentlly lives with relatives but told Inner Mongolia Morning
> Papers he was looking for life partner again.
>
> “Every one should have a goal. Without a goal, people would die very
> early. That’s why scientists always have longevity, like Einstein,
> since they have life-goals,” he said.