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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
Green tea is able to stop the scent of garlic or onion from causing bad breath.
People with alcoholism are at a much greater risk of malnutrition than are other people and usually exhibit low levels of most vitamins (especially folic acid). This is because alcohol often takes the place of 50% of their daily intake of calories, with little nutritional value contained in it.
Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.