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Did you know?
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.
Did you know?
Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.
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When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
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There are 60,000 miles of blood vessels in every adult human.
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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.