Degenerate
The degeneration was in 1857, and the French doctor B. A. Morel created a new medical syndrome. Morel argues that if parents are addicted to alcohol, tobacco, or opium, they are permanently destroying his / her genetic and their children will have a range of incurable diseases such as tuberculosis or mental retardation. Since the theory of bacteriology and nutritional deficiencies had not yet developed (which was the main cause of these diseases), the doctors at the time mistakenly believed that Morel's hypothesis was correct. Although the disease envisioned by Morel has never been seen, Richard von Krafft-Ebing, in his book Psychopathia Sexualis, especially in the inverse , Using Morel's "degradation" theory, that homosexuality is a "degradation". Until today, anti-gay people still use the word "degeneration" to refer to homosexuals. ...