Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.
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The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.
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Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.
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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
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Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.
Energy cycle of the biosphere
A Scanning Electron Micrograph of the Choroid Plexus
The atom.
Energy drinks
Transmission electron microscope
How to calculate the DRT to determine which is more effective against the pathogen