I know there’s no such thing as a typical Jewish women, and that one Jewish woman can obviously look very different to another but.... do Jewish women (on the whole) often look a lot younger than their actual age? I’m probably talking about those with East European Ashkenazi heritage.
For example Nigella Lawson is 60, Winona Ryder is 48 and Natalie Portman is 38. In my eyes all of them look significantly younger than most women their age. Even once you’ve adjusted for the fact they’re celebrities and obviously have to make more effort with their appearance that the average non-famous woman.
And from my own personal perspective, I’m from this background and have consistently been mistaken for 10 years younger than my real age throughout my life. Not meant in a boastful way at all - eg I spent my 20s getting ID’d at pubs & clubs and then my 30s not being taken seriously at work as everyone assumed I was only just out of uni. Plus I definitely don’t have the good looks of Natalie, Winona etc!