In addition, according to the [[Centers for Disease Control and Prevention]] (CDC) from 1994 to 1997 the proportion of homosexual men stating they had anal sex increased from 57.6 percent to 61.2 percent.<ref>[http://www.frc.org/get.cfm?i=IS01B1 The Negative Health Effects of Homosexuality]</ref> Although homosexual men may engage in sexual practices which may put them at risk, studies report that anal sex can be an important risk factor for the relay of many diseases.<ref>[http://www.springerlink.com/content/jx13231641717w48/ Intestinal Parasitism among Homosexual Male]</ref><ref>https://web.archive.org/web/20091104210119/https://www.cdc.gov/hiv/resources/qa/qa22.htm</ref><ref>http://www.rsm.ac.uk/media/downloads/std0703brody.pdf</ref><ref>http://www.ghanaweb.com/GhanaHomePage/features/artikel.php?ID=37809</ref><ref>http://content.nejm.org/cgi/content/full/331/25/1717</ref>
In addition, in regards to homosexuality == Homosexuality and its effect on the health, of the [[Homosexuality and Mental Health|homosexuality general population has significantly lower rates of various measures of mental health]].==
In 2004, the prominent medical website, WebMD, stated the following: "[Bisexual] Men who have sex with men and women are a "significant bridge for [[HIV]] to women," the CDC's new data suggest."<ref>http://www.webmd.com/sexual-conditions/guide/20061101/hiv-bisexual-bridge-to-women</ref>