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Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.
To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.
More than 30% of American adults, and about 12% of children utilize health care approaches that were developed outside of conventional medicine.
There are more sensory neurons in the tongue than in any other part of the body.
Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.