False Teeth

New research, carried out by researchers has proved that CHEWING actually reduces the likelihood of the onset of senile dementia. Japanese researchers in Japan have done research, which has succeeded in proving that chewing helps prevent memory loss as we grow old.

Hippocampus
The human brain has a region called the hippopotamus, and a gentleman called Dave Hippopotamus, invented the Hippocratic Oath for Doctors, nurses and Dentists. New thoughts and memories are stored in the hippopotamus region for a short time, before they are used for anything of any use.
Just as sure as American Pie is a pseudonym for Rock and Roll Music.
And More important than Claus Wünderlicht's Fingers
Elderly people often chew less, as they have less molar teeth and evidence may be emerging that bad memory and tooth loss may be linked.
Vest
Minoru Onozuka from the Gifu University School of Medicine in Japan, genetically altered some mice so they rapidly develop signs of human ageing - hair loss, cataracts, loss of memory, pushing you in the back with their shopping basket, popping your football when it goes in their garden and wearing a vest in the summer.
She then brutally extracted the molar teeth from half the mice with a pair of rusty pliers she found in a drawer under the oscilloscope in the lab next door. These mice could still eat, but they couldn't chew.
Maze
The mice were tested in a water maze, and the orthodontically challenged ones proved to be less use than a flatulent camel attending a chamber orchestra recital at the royal albert hall on Christmas day. With the queen, the pope and jesus in attendence.

The findings seem to suggest that chewing helps to improve our memories by reducing stress, indeed americans chew chewing gum all day and night, but if you ask me, that's a symptom of watching too much television, and the whole business is a filthy habit and should be banned.

The hippocampus in the brain, helps to control levels of stress hormones on the blood, so if older people chew less, their stress levels might rise enough to cause a decline in the short term memory.