Or, at least, not to Hollywood actresses who want to remain sought-after stars.

Sex and The City's Kristin Davis, for instance, favors hiking and the elliptical machine to keep her 44-year-old bod camera-worthy, she tells Self magazine.

And it shows during the strip-to-your-undies moment on the beach in her new film, Couples Retreat.

Davis - sporting tiny, lacy unmentionables - more than holds her own against co-stars Malin Akerman, 31, Kristin Bell, 29, and Kali Hawk in that scene.

What about her male counterparts in the film?

Well, let's just say Vince Vaughn and Jon Favreau - at 39 and soon-to-be 43 - look like a lot of other middle-aged guys we know ... guys who've been no strangers to a good brewski and burger. They've let themselves go a tad since their Swingers days in 1996 - especially Vaughn.

That's cool and their choice. Maybe they prefer relaxing and indulging instead of hitting the gym and scarfing salads. And it's not like they're hideous now - they're still cute.

But it's funny how it's no problem for them to continue to be movie stars, flaunting their burly, naked torsos across America's cineplexes. Can you image a female celeb being accepted in the same physical condition? She'd be ripped to shreds.

Makes me wonder: When will we be seeing extreme close-ups of men's dimpled thighs in our supermarket checkout line? Think Star magazine will be coming out with the male version of its "55 Best and Worst Beach Bodies" issue anytime soon?

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