If you've been knocking on wood hoping that your cognitive skills will stay sharp your whole life, you might consider chewing that wood instead.

That chewing helps brain function is not a surprise ... They all chewed on the right molar region at a specific speed, chewing for 30 seconds, then resting for 30 seconds, for a total of five ...

Figure 1.5.1: A interior or ring gear (yellow) with a mating spur gear (blue) Ring gears are subject to all the usual mesh requirements: the teeth must be the same size, the pressure angles must match ...

The vagina is a muscular tube that provides the passageway from the outside of the body to the uterus (womb). It changes in size during childbirth. For most people, variations don't affect function ...