HYPNIC JERK - the sensation that jolts you awake as you’re about to nod off.

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An estimated 50% of all gold ever mined on Earth came from a single plateau in South Africa: Witwatersrand.

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Hunger can cause anger, irritation and bad mood. The reason for this drop in blood glucose levels is that your brain sends signals to release regulatory hormones. One of them is adrenaline, the stress hormone.

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Agelastic:

A person who never laughs

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Australia contains a number of pink lakes, but the most stunning is the Pepto Bismol-colored Lake Hillier. The color may be the result of certain algae.

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Smokers are four times more likely than non-smokers to complain of feeling tired in the morning and are 70% more likely to have hearing problems.

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Concrete is the second-most consumed substance on Earth behind only water. Thirty-three billion tons of it are used each year, making it by far the most abundant human-made material in history.

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Cheese can be addictive because it contains a small concentration of morphine-like compounds.

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If you translate “Jesus” from Hebrew to English, the correct translation is “Joshua.” The name “Jesus” comes from translating the name from Hebrew to Greek, to Latin, to English.

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Until 1752, the New Year was officially celebrated in Great Britain on March 25.

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"Old people smell" is a real thing

Starting at about age 40, human bodies begin to subtly change the way that omega-7 unsaturated fatty acids on the skin are degraded. As these acids are exposed to oxygen in the air, the change creates a smell, called “nonenal” after the 2-nonenal molecule that is produced in the breakdown process.

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The first 5 mb in history weighed almost a ton. We are talking about the first hard drive, which was the size of a cabinet. Invented in 1956. At the time, this was considered a huge leap forward in data storage.

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If baby geese are hatched in the absence of their mother, they will follow the first moving object that they see.

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Owls’ ears are placed asymmetrically – at different heights on the sides of their faces – so the sounds reach each ear at different times. This is essential to identifying the exact direction of their prey.

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There is a rare incurable genetic disorder called Sanfilippo Syndrome that is known as “Alzheimer's in children”. It causes them to lose all the skills they’ve gained, suffer seizures and movement disorders, experience pain and suffering, and then die, often before the second decade of life.

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An owl's eye color can help indicate when they are most active

Owls with dark eyes are typically most active at night, orange eyes mean they're active at dawn/dusk, and yellow eyes suggest they're active during the day

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