Transgender hormone therapy (male-to-female) orchiectomy still experience morning erections. Voluntary erections may or may not be possible, depending on the amount of hormones and/or antiandrogens being taken. Managing long-term hormonal regimens have not been studied and are difficult to estimate because research on the long-term use of hormonal therapy has not been noted. However, it is possible to speculate the outcomes of these therapies on transgender people based on the knowledge of the current effects of gonadal hormones on sexual functioning in cisgender men and women. Firstly, if one is to decrease testosterone in male-to-female gender transition, it is likely that sexual desire and
Sexual conflict selection, continuous sexual conflict creates an environment in which mating frequency and male secondary sexual trait development are somewhat in step with the female's degree of resistance. It has primarily been studied in animals, though it can in principle apply to any sexually reproducing organism, such as plants and fungi. There is some evidence for sexual conflict in plants. Sexual conflict takes two major forms: Sexual conflict may lead to antagonistic co-evolution, in which one sex (usually male) evolves a favorable trait that is offset by a countering trait in the other sex. Similarly, interlocus sexual conflict can be the