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The human sneeze can travel faster than 100 miles per hour (160 km/h). It is not recommended to hold back a sneeze, as the extreme pressure may cause ear damage.

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A dolphin's flipper is made up of five distinct bone structures, similar to that of a human hand.

On average, humans release 2 liters of gas per day by burping and farting.

The human body cannot produce vitamin C, an essential nutrient.

The human body cannot produce vitamin C, an essential nutrient. To ensure adequate levels of vitamin C it must be consumed daily.

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Research has shown that frequently cracking your knuckles increases your chance of hand swelling and lowered grip strength.

Between 30,000 and 40,000 skin cells fall off you every minute as new cells grow and take their place. Your outer skin layer will be completely replaced by new cells in one to two months.

If you took the DNA strands out of all the cells in your body and stretched them out in a single line, they would circle the earth five million times.

Doctors estimate that we have 50,000 to 70,000 thoughts per day.

Doctors estimate that we have 50,000 to 70,000 thoughts per day.

If the hair on your body was longer and thicker like animal fur, having goosebumps would fluff up your fur coat and make your hairs stand up. It would also provide more insulation to keep you warmer.

Contrary to popular belief, we have more than five senses. We are able to feel heat from a distance, sense where our body parts are and maintain equilibrium when standing, we can sense when we are itchy, tense, and hungry.

The human brain receives 400 million bits (47 Megabytes) of information every second. Of those, we are only consciously aware of 2000 bits (0.0002 megabytes).

The smallest bone in the human body is found in the middle ear. It is called the staples bone, and it measures 2.8 millimeters long.

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Your nose contributes to taste more than your tongue. Around 80% of taste is actually coming from your smell receptors. Hold your nose when you eat something and you'll see it's 'taste' will not be as strong.

The human liver can regenerate itself fully. A liver that is only 30% the normal mass can regenerate to a full liver.

Chopping up onions activates a chemical reaction that releases sulfur gas. Water in the human eye reacts with sulfur gas to create sulfuric acid. Although the amount of acid is very small, it's enough to cause a burning sensation in the eye.

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