Transgender hormone therapy (male-to-female) males is associated with higher serum estrogen. Both estrogen and testosterone help to stimulate bone formation, especially during puberty. Estrogen is the predominant sex hormone that slows bone loss, even in men. In spite of the induction of breast development, transgender women who undergo HRT do not have an increased risk of breast cancer. Only a handful of cases of breast cancer have ever been described in transgender women who have undergone male-to-female HRT. This is in accordance with research in cisgender men in which gynecomastia has been found not to be associated with an increased risk of breast cancer,
Causes of sexual violence male rapists had less empathy toward women who had been sexually assaulted by an unknown assailant and more hostility toward women than non-sex-offenders and nonoffender males/females. Meta-analyses indicate that convicted rapists demonstrate greater sexual arousal to scenes of sexual coercion involving force than do non-rapists. There is evidence to suggest that sexual violence is also a learned behavior in some adults, particularly as regards child sexual abuse. Studies on sexually abused boys have shown that around one in five continue in later life to molest children themselves. Such experiences may lead to a pattern of behavior where the man regularly