Michelle Obama, Jennifer Lopez, Helen Mirren, Madonna, Isabelle Huppert - sexpert Tracey Cox's latest book opens with a list of women that have passed the half-century mark yet remain sexy and vibrant.
According to Cox, herself a youthful 58-year-old, such post-menopausal sexiness is possible for all women... with the right attitude.
"I interviewed hundreds of women for this book and everyone complained about the same thing," she says. "They all have dry vaginas, they had all put on weight, they all had wrinkles and didn't have the body of a 20-year-old.
"The women with confidence, with self-belief and self-acceptance were the ones, while experiencing the same things, said sure, I don't look like I did when I was 20, but I think I look sexy and it is this attitude that made them happy. And they were the women that were having great sex and great relationships and rolling through the menopause."
Great Sex Starts At 50 is Cox's 17th book. The former journalist and associate editor of Cosmopolitan magazine has previously published such tomes as Hot Sex: How To Do It, Super Sex, More Hot Sex: How to Do It Longer, Better And Hotter Than Ever and Dare: What Happens When Fantasies Come True.
Before she herself entered her 50s, Cox was hesitant to write another sex book - "I mean, how many times can you reinvent the wheel" - but after entering menopause at 48, she was shocked to find that her own desire for sex had all but disappeared.
"I had always had a very high libido. I went through the menopause and out the other side and I was like, oh my God, where did it go? Obviously, it was hormonal changes because oestrogen and testosterone fall after menopause and they are responsible for spontaneous sex drive - where you could be doing the hoovering and feel like having sex with someone. It was a bit of a worry that the desire, the kind that taps you on the shoulder, just wasn't there anymore.
"And also, what no one talks about is the nerve-endings thing. Blood flow dramatically changes due to hormones dropping and I was going to the loo and wiping myself and feeling numb, and I thought, oh my God, what's going on now? There is all this stuff that no one talks about and it is really freaky. I have been writing about sex for 30 years and I was taken aback, so God knows how you would feel if you are not a sexpert."
For Cox, hormone replacement therapy (HRT) was part of the solution, and she was particularly impressed with oestrogen pessaries, which she found to be "amazing" for lubrication.
However, the ultimate solution, she claims, is in reconceiving the idea of sex.
"It is all about attitude. I thought the sex I used to have isn't really on the cards now because it is uncomfortable, so I have to change my attitude.
"And I have always been such a fan of oral sex, so I was more than happy to have more oral sex and less penetration. That's why lots of older couples report higher sexual satisfaction for that reason."
Herein lies Cox's thesis: women don't necessarily go off sex, per se, they go off penetrative sex, and instead of bemoaning and accepting the loss of libido that is a fact of old age, we need to rethink and recreate our sex drive without the help of hormones.
The result, she claims, can be a better and ultimately more satisfactory sex life.
And how do we do this? By having sex of course.
Even if we don't feel like it?
"Desire is not the only motivation for sex. There is this whole thing that 'I shouldn't have to have sex with my partner if I am not completely frothing at the mouth'. Nobody who is honest, who is in a long-term relationship, can say the only time I have had sex with my partner is when I have been absolutely dying for it.
"You have sex because they feel like sex, and you don't necessarily that time, but they have had sex with you when they didn't necessarily feel like it and you did. You do it to please your partner, you do it for intimacy reasons, you do it to keep your genitals in shape, there are lots of reasons where you would have sex without feeling like it.
"With female arousal, often women don't necessarily feel like sex before they start having sex, they often get in the mood while they are having sex. They are not automatically aroused, but once they start having sex they feel like having sex.
"Post 50, spontaneous desire leaves you. So you have to create desire, you have to work out what your erotic triggers are. Is it reading a sexy book? Is it watching some porn? Is it getting yourself turned on with a sex toy first? Is it having a bath? Is it having your partner give you a massage? Work out what it is for you and do it before you are going to have sex with your partner."
Great Sex Starts At 50 is out now and published by Murdoch Books