Why do we itch?

The sensation of itching is caused when something irritates the skin, which can be caused for a variety of reasons.

Why do we cry?

Crying is an emotional and psychological response. People cry when they feel an overwhelming emotion such as joy, pain, sadness, and stress.

Why do people bite their nails?

Nail biting is an obsessive behavior that is commonly triggered by stress.

Why do people sleep talk?

The reason behind sleep-talking is not completely understood at this point, however, it is mainly believed to be caused by unrepressed brain signals.

Why do people sleepwalk?

Sleepwalking occurs when the brain sends the signals to the body to do something even thought the person is in deep sleep.

Why do kidney stones form?

Kidney stones form when the minerals and acid salts in the urine clump together to form a crystalline stone. This happens when the urine is concentrated as the person is most likely not getting enough fluids.

Why does the body smell?

Sweat is actually nearly odorless. The body smell or body odor is actually caused by the bacteria feeding on the salts in the sweat, which leads to the creation of foul smeling acids.

Why do babies vomit?

It is normal for babies to vomit. They may vomit due to the speed with which they drink, swallowing air while feeding, overfeeding, motion sickness, indigestion, and gas, as well as other less common reasons.

Why do body parts go numb?

When we sit or stand in one position for long, the pressure on a single part of the body causes the neurons to stop sending signals to the brain, which results in the feeling of numbness.

Why do we twitch while falling asleep?

The twitching during sleeping is caused by involuntary muscle spasms when the body relaxes just prior to falling asleep. It may also be a vestigial reflex to prevent our ancestors from falling out of trees that they slept in.


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