Six interesting facts you didn't know about the female body

Vaginas and sharks have something in common

Certainly not the teeth. This substance, which is present in women's vaginas and has also been found in shark livers, is called squalene. It, together with sweat, sebum, cervical mucus, exfoliated cells, urea, acetic acid and lactic acid, and alcohol and ketone complexes, forms a natural vaginal lubricant.

Squalene extracted from shark liver oil is often used as an additive in skin care products to moisturize the skin. In addition, researchers from the American Cancer Society have found that shark-derived squalene appears to protect normal human cells and reduce the adverse effects of tumor chemotherapy drugs.

Women use both left and right brains to “listen”

Using an fMRI machine, the men and women's brain activity was monitored as they listened to a passage from a novel. Most men have a more active left brain (the left brain is usually associated with hearing and language), while most women show extra activity in the right brain (the right brain is associated with creativity and expression). This may be the reason why women often “listen as if they didn’t listen”.

Women look younger than men in photos

The bad news for women who love beauty is that due to hormonal changes, menopausal women lose collagen in their skin much faster than men. However, this does not prevent men from looking older than women.

This is because men have thicker skin that is more susceptible to facial lines and age spots, while they also have to endure the daily trauma of shaving and the damage of aftershave chemicals. The way to combat this is that testosterone can make their complexion look smooth and oily.

Hormones may help women book dentist appointments

If you need to find a time to have a tooth pulled, throw away your calendar. Estrogen acts on the mouth and can dry out the tooth socket. When the tooth is pulled out, the blood will coagulate quickly, exposing the bone and nerves underneath, which are more susceptible to infection. Therefore, it is recommended to have the tooth extracted during the last week of the menstrual cycle (23rd to 28th) when estrogen levels are lowest.

If you're pregnant, you'll find that a surge in estrogen can also cause your gums to swell and increase your risk of gingivitis, so you should be careful to keep your teeth clean before your baby is born.

Your hatred of spiders may be genetic

Do spiders give you goose bumps? Researchers at Carnegie Mellon University tested the human instinct, showing 11-month-old babies pictures of spiders, as well as pictures of happy and scary faces. They found that baby girls were quicker to react to spiders with negative emotions.

The researchers speculate that because men's work in evolution was mostly hunting and gathering, women often needed to stay at home and protect vulnerable children, so they would be more vigilant about spiders, snakes and other poisonous animals.

Women have more internal organs

While women and men have the same basic digestive tract (stomach, liver, gallbladder, colon), the lower part of the colon, called the sigmoid colon, tends to be longer in women. Also, the lower half of a woman's body is almost entirely filled with reproductive organs, which means that women have more stuff to squeeze into a smaller space.

So, women's digestive systems don't have enough space to store excess gas, air, or food, so women should have more toilets to use.