How to meet and greet? The young are pretty clueless Next month a female members-only club called Grace opens in Belgravia (I've been round already, and I definitely want to live there - it's got a library and something called a "broth bar"). Astonishingly, this is the first ladies-only club in the capital. Chris O'Donaghue, a co-founder, says: "Women are becoming more confident, more powerful and taking control, but there is not a single venue where they can all come together without the disruption of men." I can't wait to join, obviously, but this is simply not true. The reason that men's clubs have thrived for centuries and women's clubs haven't is because most "social life" - weddings, parties, charity dos, fashion shows, you name it - is, basically, organised by busy women for the benefit of other busy women. The male club is a posh shed with claret, cigars and other chaps: a sanctum for the far weaker half of the species. People laugh at Nancy Dell'Olio, but I think she adds to our GDP (Gaiety Domestic Product). When she dates, the lucky guy is gonna have a very special time, she says, because she is so intense. She didn't need to do Strictly because she's always been a great dancer. And no, Prince Harry isn't too young for her, because she may be 50 but inside, she's 30. "I've had myself tested," she insists. I've met Nancy, she is sweet and brown and wriggly, a human Curly-Wurly, but still, I too scoffed at her claim to have a biological age decades dewier than the chronological - until, that is, I went to a "medi-spa" in Portugal. At Longevity Wellness (yes, that is its name) I underwent a "biophysical evaluation." I submitted to electrodes and had the water content of my cells measured, and blood tests. And then, after just three days in the Algarve, I returned 15 years younger! "My biological age is 32," I told my husband on my return, omitting mention of my fashionable intolerances to gluten and dairy, because he is equally intolerant of the "special dietary requirements" industry. "Thirty-two?" he said "Yes! I've been tested! I replied, sounding exactly like Nancy. "And tell me now," he went on pleasantly. Did they also scientifically establish that your mental age is six?