Breast size is never constant in a woman because it inflates and deflates according to where we are in our menstrual cycle. Additionally, one breast is always larger than the other. It’s usually a small enough difference to not be noticeable. But no woman has equal-sized breasts.

In an Indiana University School of Medicine study using MRIs, researchers found that while most of the men showed activity exclusively on the left side of the brain (typically associated with listening and speech), most of the women showed additional activity on the right side (associated with creativity and expressiveness).

Regardless of how rapidly women’s skin ages, men still tend to look older. This is because men’s skin is thicker and more likely to show facial lines and age spots and also because they subject it to the often-daily trauma of shaving, aftershave and astringent.

While women and men have the same basic digestive plumbing, women’s lower bodies are practically bulging with reproductive organs. All of this means that our digestive systems don’t have as much room to expand when troubled by excess gas, air or food, which is why we are likely to experience distress in our midsections.

Adult women cry 5.3 times a month; adult men, about 1.4 times, according to neuroscientist William Frey. At the cellular level, women’s tear glands are bigger than a man’s. We also have 50 to 60 percent higher levels of the hormone that regulates the development of the tear glands and aids in the production of tears.

Typically speaking, women tend to burn 50 calories less than men a day, and this is because men tend to have larger organs and thus require more energy to keep them going, as such men burn through more calories than women. This also means that men can eat more than women and have a higher recommended calorie intake.

Women tend to have more taste buds on their tongues than men and also have a more sensitive palate. This sensitivity is then further increased when women reach a childbearing age as they become more susceptible to sharp, sweet and bitter tastes.

It has been found that women are often better at distinguishing shades of colour and this is because colour perception is directly linked to the X chromosome, which women have two of as opposed to men’s X & Y chromosomes.

Women tend to have more sensitive skin than men and are also more sensitive to touch and thus can often distinguish finer detail with their hands. Testosterone increases the thickness of the skin which is why men tend to have 25 percent thicker skin.

A woman’s brain activity lowers only 10 percent during sleep which is far lower than a man’s. As such, women may find they need to spend longer in bed, especially around menstruation periods due to hormones and pain also affecting sleep balances.

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