It's right there in the article? > Sexual activity was largely unchanged among unmarried women, along with no notable decline among gay men, researchers report

It's right there in the article? > Sexual activity was largely unchanged among unmarried women, along with no notable decline among gay men, researchers reported. As an almost middle-aged straight man, from Europe, I see the problem described and discussed here as _mostly_ related to young men, seemingly incabable of forming normal healhy romantic relationships. There also seem a growing number of young women who cannot find a suitable partner amongst their own age group, since there are so many young men that simply don't fit the profile they're looking for. That's obviously just anectdotal, and possibly just an old man yelling at the cloud. After all, hooking up at bars is something old people do. :D It's definitely an issue we need to look into though. At least if we're at all interested in keeping our own cultures alive. If we don't, it's not going to be the end of civilization itself; it's just going to be the end of our own civilization since other cultures without such issues will still be around.