Two studies show that lots of people have vibrators, half of women use them regularly, and they're good for sexual health. Yes, that includes guys, who've used them on their partners, but their use reflects a greater interest in their own sexual health as a results. The study didn't show that vibrators themselves caused health, but that people who gave a shit about their health tended to thus pay more attention to their genitals than they otherwise would. So, ladies, if you haven't got a vibrator yet, you best do so: I can guarantee it'll be better for you in the long run, and you'll definitely use it more than the treadmill that's busy holding up last winter's Christmas decorations and a box of sweaters.