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Why?
May 25, 2026, 01:42 PM
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WHY don't people still inject themselves with endorphins (happiness hormones) intravenously?
Actually, they do.
It's called "heroin addiction". The chemical structure of opiates is totally unlike our own endorphins (otherwise they wouldn't be able to get from the blood vessels to the brain), but they act exactly the same way on the receptors.
And there is nothing good about this idea, since the brain is instantly hooked on the artificial sensation of concentrated happiness and demands repetition. And after a number of repetitions it reduces the production of its own endorphins.
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May 25, 2026, 01:42 PM
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WHY doesn't a person start boiling in a sauna?
In a sauna, the temperature reaches 130 degrees. A person is not boiling in a sauna as he sweats profusely. Evaporating in the dry atmosphere of the sauna, the sweat cools the body, allowing it to maintain a normal temperature.
However, this mechanism cannot work for a long time, so a person is only able to stay in the sauna steam room for a short time.
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May 25, 2026, 01:42 PM
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WHY do girls love diamond wedding bands so much?
For five centuries, the diamond has established itself as the most expensive and desirable stone for jewelry. And since the 19th century, it has been considered the most popular stone for engagement and wedding rings.
This tradition was established by De Beers, which monopolized the diamond market in the late 19th century and just after World War II explained in an advertising campaign of historic proportions that diamonds are forever.
Naturally, marketers drew parallels with love and marriage and suggested that men should spend three wages for an engagement ring. The monopoly lasted until the mid-1990s. Today, the once-great "diamond syndicate" owns only 40% of the market.
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May 25, 2026, 01:42 PM
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WHY do we sleep on a pillow?
One of the reasons we use pillows is the anatomy of the human body. When we stand, our head, neck and spine are on the same vertical line.
This line must also be maintained when lying down. That is, for a comfortable sleeping position, the head and the cervical spine should also be on the same line.
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May 25, 2026, 01:42 PM
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WHY does each flower have a unique scent?
To attract "their" insects.
Almost all fragrant flowers are pollinated by insects. Plants benefit from pollinators visiting one of them and flying to another one of them.
Then the flowers will get pollen of their own kind, not someone else's. To this end, flowers have features that help insects recognize them: shape, coloration, and, naturally, smell. It can include substances that are attractive to the "right" pollinators.
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May 25, 2026, 01:42 PM
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WHY does my voice disappear?
It frequently occurs with laryngitis, normally provoked by viral agents or caused by general hypothermia.
Due to inflammation in the larynx, the vocal cords stop vibrating and therefore cannot create sound waves when exhaling air from the lungs.
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May 25, 2026, 01:42 PM
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WHY do golf balls need indentations?
These "indentations" on the ball are necessary to increase the range of the ball. So air flowing around an uneven ball reduces the vacuum trace created due to velocity.
And the boundary layer of air in a smooth ball doesn't have time to go behind its back side, so it creates a zone of reduced pressure, which means less velocity.
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May 25, 2026, 01:42 PM
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WHY do hyena dogs follow the custom of making decisions in the pack by voting?
The hyena dogs inhabiting Africa have a collective decision-making mechanism. To start the hunt, one individual must make a sneeze-like sound, and the others must support it with the same sound.
If one of the dominant pair sneezes first, an average of three support votes is enough to start the hunt, and if an ordinary dog starts the hunt, the number of necessary votes increases to ten.
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May 25, 2026, 01:42 PM
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WHY not to wear lenses when you're sick?
When sneezing or coming into contact with your eyes, if you, say, touch your nose with your hand and then run your fingers over your face next to your eyes, bacteria can get on the surface of the lens. This multiplies the risk of eye infections many times over. A weakened immune system also worsens the situation. After all, a weakened body is more difficult to resist the emergence and development of new diseases.
Increased temperature leads to drying of the mucous membrane of the eye. The same effect occurs when taking certain medications, such as antihistamines used in allergies. A person feels itching and burning in the eyes, suffering from their redness. Contact lenses can aggravate this condition, so you can not wear them with a cold.
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May 25, 2026, 01:42 PM
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WHY do more people drown in fresh water than in salt one?
If you inhale salt water, the high concentration of salt prevents the water from penetrating the lung tissue. When people drown in salt water, that's generally cause they can't get oxygen or expel carbon dioxide. Breathing in salt water creates a physical barrier between air and the lungs.
Fresh water is more "diluted" with ions than the fluid inside the lung cells. Fresh water does not penetrate skin cells because keratin essentially makes them watertight, but water rushes into unprotected lung cells to try to equalize the concentration gradient on the cell membranes. This may cause serious tissue damage, so even if water is removed from the lungs, chances are you won't get better.
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Apr 28, 2026, 05:39 AM
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WHY did Heineken produce bottles shaped like bricks?
In 1960, Alfred Heineken, grandson of Heineken's founder, visited the Caribbean island of Curaçao and saw thousands of Heineken bottles lying around. Alfred grieved so much that he decided to produce bricks which would solve two problems: poor citizens could build their homes out of empty square bottles and the planet would become less polluted.
Later they produced 100,000 bottles in the form of bricks, but due to the high cost of their production and customer dissatisfaction (square bottles are uncomfortable to hold in your hand) the plant ceased their production. Nobody knows how many houses were built with these bottles.
