Life's Little Mysteries

Life's Little Mysteries answers fascinating questions about the world around you and the stuff in it, from things in the news and on your mind to crazy questions you didn't even know you had.

  • What Causes Skin Tags?

    What Causes Skin Tags?

    January 29, 2014 | Article

    The common skin growth called a skin tag, or acrochordon, usually develops in folds of skin and causes little to no harm. Still, these growths can be irritating, and doctors can easily remove them.
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  • How Fast Does Hair Grow?

    How Fast Does Hair Grow?

    January 27, 2014 | Article

    Most studies measuring the rate of hair growth haven't taken into account the race of study participants. A 2005 study found a difference among races in the rate of hair growth. Asian hair grows the fastest, while African hair grows the slowest.
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  • When Was the Internet Invented?

    When Was the Internet Invented?

    January 21, 2014 | Article

    Ideas about a technology that could connect people via a global, hardwired network have abounded since at least the 1930s. But the information hub that we know today as the Internet traces its origins back to 1958.
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  • Who Invented the Internet?

    Who Invented the Internet?

    January 15, 2014 | Article

    Technology experts cite various government agencies — as well as a handful of individuals — that have played an instrumental role in inventing what we know today as the Internet.
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  • How Hot Is the Sun?

    How Hot Is the Sun?

    January 15, 2014 | Article

    The sun, a massive nuclear-powered star at the center of the solar system, generates the heat and light that sustain life on Earth. But how hot is the sun?
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  • When Do Babies Start Teething?

    When Do Babies Start Teething?

    January 15, 2014 | Article

    When babies start teething, the lower central incisors — the two bottom front teeth — are the first to come in, followed by the upper central incisors. From there, the other incisors, the first set of molars and the canines all grow in.
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  • Why Do People Cut Themselves?

    Why Do People Cut Themselves?

    December 20, 2013 | Article

    Cutting is one form of non-suicidal self-injury (NSSI) — also known as self-injurious behavior or non-suicidal self-directed violence — which is the deliberate, self-inflicted destruction of body tissue without suicidal intent.
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  • What Is Yeast?

    What Is Yeast?

    December 20, 2013 | Article

    Yeasts are microscopic, single-celled organisms belonging to the fungi kingdom — the taxonomic group that also includes mushrooms and mold.
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  • What Is Bonded Leather?

    What Is Bonded Leather?

    December 19, 2013 | Article

    If you've purchased a relatively cheap leather sofa, leather-bound books or an inexpensive belt, you might own a bonded-leather item. But what is bonded leather?
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  • What Is Jell-O?

    What Is Jell-O?

    December 19, 2013 | Article

    Sold since 1897, Jell-O has occupied a familiar place on American dinner tables for decades. But what is Jell-O made of?
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