If your throat tickles, scratching your ear can make it go away.
Scratching your ear can sometimes help relieve an itchy or ticklish feeling in your throat. The reason for this is that the nerves in your ear are connected to the nerves that control your throat and can stimulate a reflex that causes the muscles in your throat to contract, which may help to relieve the tickling sensation.

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Listening to music at high volumes can make a person calmer, happier and more relaxed.

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Giraffes have a very strong heart that pumps blood twice as hard as a cow's heart in order to get blood to its brain. The giraffe's long neck presents a challenge in terms of blood flow, as the heart has to work extra hard to pump blood all the way up the neck and into the brain. In order to achieve this, the giraffe's heart has a thicker left ventricle wall than other mammals of a similar size, which allows it to pump blood more forcefully. Additionally, giraffes have a very high blood pressure, which helps to get blood to the brain more efficiently.

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There are more chickens than people in the world.

What is the chicken to human ratio? In 2020, there were over 33 billion chickens in the world—and there were only 7.76 billion humans. This means there are over four chickens for every person in the world!

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Baby turtles communicate with one another while still in their shells so that they all hatch at the same time.

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Hangovers are the result of hormone level changes in your body meant to reduce dehydration and cellular damage caused by alcohol. You feel hungover until the level of ethanol in your blood slowly returns to zero, which can take up to 48 hours.

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Fast food bread contains a chemical substance called azocarbondiamide. It makes the mixture more elastic.
It's funny, but the same substance is used in the production of yoga mats.

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Queen Elizabeth has met 12 US presidents during her reign, more than a quarter of all presidents since the nation's founding.

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China is reportedly first consumer of snake wine which is an alcoholic beverage produced by infusing whole snake in grain alcohol.

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Cats’ urine glows under a black light. The Urine glows under a black light primarily because it contains the element phosphorus.

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Each year, 16 million thunderstorms happen around the world, and at any given moment, there are about 2,000 thunderstorms in progress.

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The rumbling sound your stomach makes when hungry is called "borborygmus." It happens when the muscles in your digestive system move food, liquid, and gas through your stomach and small intestine,  producing a rumbling sound.

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Jagdish Raj, holder of the Guinness world record for most typecast actor, played a policeman in 144 movies.

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Kangaroo rats can live their whole lives without ever drinking water.

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