The modified brain then guides individual behavior to voluntarily fit into a cultural context and meanwhile to modify current cultural environments.
In males with 5-alpha-reductase deficiencyconversion of testosterone to dihydrotestosterone is disrupted, decreasing the masculinization of genitalia. People who transition early in life, for instance, might have different brain characteristics from those who transition later, owing to the way their brains are shaped by societal gender roles or biological factors, such as hormones during puberty. Genetic and digital immortality are within reach.
Male-to-female transsexuals have female neuron numbers in a limbic nucleus.