Thanks to a mouse watching clips from “The Matrix,” scientists have created the largest functional map of a brain to date.

However, Dr. Mutenga notes that "there are some rare conditions that can cause variations, including having two vaginas ...

For 100 years, dozens of studies have shown that in partner sex, men are much more likely than women to report orgasms. Why?

But in some cases, the baby’s genitalia might look completely male or completely female. In other words, they may have male anatomy on the outside but female anatomy on the inside or vice versa.

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Having a large labia may be due to a condition called labial hypertrophy, but it can also be normal. Labia come in different sizes and may not be symmetrical. In some cases, large labia may cause ...

Your information is private and anonymous. First day of your last period Planned Parenthood Federation of America, Inc. (PPFA) works to protect and expand access to sexual and reproductive health care ...