Sorry, ladies, don't get your hopes up: a recent study shows you're having the best sex of your life at 28. In fact, you're happiest all-around at that point in your life - everything after that sucks. So, don't worry: you'll only have, what, fifty, sixty more years ahead of you? Like pornstars, football players, and actresses, you've passed that hump, it's all downhill from here.