The Bizarre Body Part Men Notice

feminine woman flexing her arms red lips

The body part men go ga-ga for? It may surprise you. Plus, what he doesn’t notice.

What do Madonna, Michelle Obama, and Jennifer Aniston all have in common? They all rock the body part that a new study says men love most: great arms.

Researchers from the University of New South Wales in Australia had men watch videos of 96 different women as they moved about, asking them to rate each lady for attractiveness. In the past, similar studies have focused on waist-to-hip ratio, giving the booty-less of us (ahem) a complex that we don't possess the ideal .7 ratio like screen siren Jessica Alba. This time around, while waist-to-hip ratio (along with body mass index) still made the cut, the number one thing on men's lists were long, shapely arms. Looks like size does matter, after all. Do Men Prefer A Pretty Face Or A Curvy Bod?

And you know what long arms mean! Likely, height—so it's no surprise that this study also found that taller women rated as more attractive (especially taller women with a proportionally narrow waist). But, surprisingly, flashing a little leg won't do you much good, no matter how long the gals' gams were—the men in this study didn't go for them. And while researchers didn't explain this surprising find, they did say that in general, "The dimensions of someone's body can tell observers if that person is suitable as a potential mate, a long-term partner or perhaps the threat they pose as a sexual competitor."

And it's not just long legs men don't notice. Another recent study, led by researchers at Northumbria University, looked at the reactions of men watching women ages 18 to 35 walking in high heels and flats. Looks like those sky-high heels are lost on him: Even though walking in heels gives the illusion of longer legs, a tilting torso and more prominent booty, men apprently aren't able to tell the difference. Not that that'll stop us from rocking our favorite pumps. Do Men Prefer Women In Sweats Or Heels?

What do you think—when was the last time a man complimented your biceps, as opposed to a hot pair of shoes or a form-fitting dress?