A 2005 study of gay and bisexual men estimated that about 20 to 30 percent have used methamphetamine, a highly addictive drug whose use is directly correlated with a variety of negative effects —insomnia, paranoia and aggressiveness, extreme weight loss, irregular heartbeat, and stroke. In extreme cases, meth use can result in cardiovascular collapse and death. Meth use is also indirectly but strongly associated with risks of infectious diseases, including HIV, hepatitis C, and serious bacterial infections. The Medius Institute for Gay Men’s Health and New York’s LBGT Community Center are teaming up to host “Breaking Up With Tina,” a community forum on treatment options. Speakers will include facilitator Dr. Marjorie Hill of Gay Men’s Health Crisis and Christopher Murray, MSW, a substance use counselor at the Center. The event takes place Thursday, September 29 at 7 p.m. at 208 West 13th Street. For more information, call the Center at 212.620.7310.