'The Spirit' star likes a little nocturnal upside-down action to stay young looking.

Not only does Eva Mendes have a look and appeal that hearkens back to the heyday of Hollywood starlets, she's got the beauty regime as well.

No fancy lotions, potions, fillers or freezers for the youthful 34-year-old. Eva kicks it old school by hanging upside-down to achieve a gorgeous complexion.

"Whether it is a photo session or a hot date, Eva swears by hanging her head down on a slant board for about 20 minutes," one report said, "Allowing blood flow to your upper body and face will bring on a vibrant, flushed-with-youth look.”

A little bat action for Halloween? Amazing. But year round, Eva, it's just a little unsettling.