“The birth order effect” on sexuality describes a male’s chances of being gay based on how many older brothers he has. The more older brothers a male has, the more likely he is to be gay. The brothers don’t have to be raised together, they just have to come from the same mother. The birth order effect is caused by the prenatal environment of male fetuses. While in the womb, male fetuses come into contact with antibodies from the mother. The mother’s immune system emits these antibodies to attack the foreign male genes that are now present inside of her. .These antibodies emasculate and become stronger each time they are used. So, the more older brothers a male fetus has, the more likely he is to be gay as the antibodies have grown stronger with each …show more content…
There has been a drastic change in the way people, scientists especially, view homosexuality. German neuroendocrinologist Günter Dörner’s attitude towards homosexuality, for example, changed from seeing it as being “a mental disorder with a biological cause” to a cluster of traits with a “natural non-pathological nature.”(5) Being homosexual is not a mental disorder. No research has proven an innate association between non-heterosexual orientations and psychopathology. Dr. Evelyn Hooker’s research in the 1950s found no difference between gay and straight men in respect to mental health. Homosexual behavior, like heterosexual behavior, is a normal part of human bonding and sexuality. Homosexuality isn’t something new or regional, it has been documented during many different time periods and within many different cultures. After a lot of research and clinical experience, all mainstream medical and mental health organizations in the U.S. have concluded that both heterosexuality and homosexuality are natural and normal parts of human