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Did you know?

The average human gut is home to perhaps 500 to 1,000 different species of bacteria.

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Anti-aging claims should not ever be believed. There is no supplement, medication, or any other substance that has been proven to slow or stop the aging process.

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In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

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According to the FDA, adverse drug events harmed or killed approximately 1,200,000 people in the United States in the year 2015.

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Every flu season is different, and even healthy people can get extremely sick from the flu, as well as spread it to others. The flu season can begin as early as October and last as late as May. Every person over six months of age should get an annual flu vaccine. The vaccine cannot cause you to get influenza, but in some seasons, may not be completely able to prevent you from acquiring influenza due to changes in causative viruses. The viruses in the flu shot are killed—there is no way they can give you the flu. Minor side effects include soreness, redness, or swelling where the shot was given. It is possible to develop a slight fever, and body aches, but these are simply signs that the body is responding to the vaccine and making itself ready to fight off the influenza virus should you come in contact with it.

An activation barrier, representing the transition state An activation barrier, representing the transition state
Enthalpic stabilization of the transition state in an enzyme-catalyzed reaction Enthalpic stabilization of the transition state in an enzyme-catalyzed reaction
Percentage of Americans Living in Communities with a Fluoridated Water Supply, by State. 2012 Percentage of Americans Living in Communities with a Fluoridated Water Supply, by State. 2012
Speed of Convergence to the Steady State Speed of Convergence to the Steady State
Parent restraint of a young child during examination of the ear Parent restraint of a young child during examination of the ear
How reciprocal functions compare to the parent function How reciprocal functions compare to the parent function
Video: Renin/Angiotensin (water gain from urine & Na ion and water reabsorption)

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