23 true and interesting facts that few people know.

Momordica charantia

A fully ripe bitter melon tastes sweet.

The habit of smoking a cigarette after sex is very harmful to the body, and in severe cases it may make a person unable to perform sexual activity.

Sometimes you feel like tiny insects are crawling on your body, but when you scratch them you find they aren't there. This phenomenon is called formication.

can

From a production process perspective, canned food is the safest type of food.

Every time you shuffle the cards, you become the first person in history to shuffle this particular order of cards.

When a person is asleep, they can hardly smell anything.

vision

Generally speaking, men have better eyesight than women, while women have better hearing than men.

Canaries attract mates by singing; if a canary cannot sing, it will remain single for life.

Some colors are beyond the brain's imagination; for example, the brain cannot imagine having both blue and yellow colors at the same time.

French flag

The width ratio of the blue, white, and red colors in the French flag is 30:33:37.

Although mandarin ducks are often used to describe couples and love, in reality, mandarin ducks are not monogamous.

In the United States, when newlyweds get married, their friends and family give them household items as a congratulatory gift, rather than giving them red envelopes.

The voice we hear is usually lower than the voice in a recording because the skull can transmit low-frequency sound waves more efficiently.

dog

Dogs were the first species domesticated by humans.

Instant noodles have been hailed as one of the greatest inventions of the 20th century.

The small hole in the middle of the plastic stool is to prevent the stools from being stacked together and unable to be separated.

Even if everyone on Earth jumped at the same time, it wouldn't have much of an impact on the planet because the difference in mass would be too great.

Infatuation is actually a mental illness, scientifically known as erotomania. If not treated promptly, it may develop into schizophrenia in severe cases.

butter

Europeans initially used butter as a face cream.

The energy produced by the heart in a day can power a truck to travel 30 kilometers.

The earliest bananas were not sweet and were red and green in color.

A refrigerator shaped like a box is called a freezer, while a refrigerator shaped like a cabinet is called a refrigerator.

Strictly speaking, there is no difference in nutritional value between free-range chickens and broiler chickens.