Baby boomers are pretty confident they’re experts in the bedroom—particularly women. Some 59% of women aged 45 to 69 believe they know “all about sex”, according to an AP-LifeGoesStrong.com poll; 48% of their male counterparts think the same of themselves. Meanwhile, 48% of 45- to 55-year-old men say their partners don’t want sex as frequently as they do; only 13% of same-aged women have the same complaint. Overall, the study found that 28% of male and 21% of female baby-boomers are dissatisfied with life in the sack. (More baby boomers stories.)