Some argue monogamous gay couples should be exempt
Vaccination protects from various forms of cancer
Pot, poppers and Viagra common in Brit participants
More likely to face psychological problems than straights
Aimed at reducing HIV infection during 'chemsex'
Disproportionately affected by poor sexual, mental health
Meth among drugs cited in report
Epidemic of infection in U.K. men
Gay pioneering mathematician convicted of gross indecency in 1952
LGB young people are twice as likely to have smoked as their straight peers
