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Gender identity

life science Maturity 11-13 Next article →

Gender identity is how a person feels inside. It is their own sense of being a boy, a girl, or something else. This feeling can match the sex a person was born with. It can also be different. People who feel different are often called transgender or non-binary.

Most children form this feeling very early. It often becomes firm by age three or four. Some experts say it can start even earlier. Scientists study how this happens. They look at nature and nurture. Nature means things like our genes and hormones. Nurture means how our families and culture teach us.

There is strong evidence that biology helps shape this feeling. Hormones in the body can affect how the brain grows. Some studies show that brain parts in transgender people look more like their true identity. For example, some parts may look more like a woman's brain or a man's brain. This helps us see that gender identity is a deep part of who we are.

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