A century ago, the average life-span for Americans was about 50 years. Today, the typical American lives to be about seventy-eight. What changed?
If you are grinding your teeth you could be wearing the enamel down, as well as causing damage to your jaw. When we’re asleep, we’re capable of grinding our teeth six times as hard as we might in the day. That kind of pressure can do a lot of damage.
This strange disease was first noticed in the UK when British cows were infected by feed containing tainted sheep material. How could you spot a mad cow?
Some people believe that a dog's mouth is cleaner than a human's. While this may be true, which mouth is more dangerous to people?