"Gay men are able to lead healthier, less stress-​filled lives when states offer legal protections to same-​sex couples, according to a new study examining the effects of the legalization of same-​sex marriage in Massachusetts," a Columbia University news report states. "The study, 'Effect of Same-​Sex Marriage Laws on Health Care Use and Expenditures in Sexual Minority Men: A Quasi-​Natural Experiment,' is online in the American Journal of Public Health.