Brushing your teeth twice a day should
keep the dentist away. But if a group of
scientific researchers have their wish, it will
make the rest of your body healthy too. A
toothbrush that checks blood sugar and
bacteria while you brush is currently in
development in the USA. It is one of many
gadgets proposed by engineers and doctors at
the Center for Future Health in New York –
others include a pair of spectacles that help to
jog your memory, and a home camera
designed to check for cancer.