Want a Promotion? Your Wardrobe May Be Holding You Back.

Putting on formal clothes makes us feel powerful, and that changes the basic way we see the world, says Abraham Rutchick, an author of the study and a professor of psychology at California State University, Northridge.

The data found that wearing a suit provided participants with "higher action identification level," "greater category inclusiveness," "enhanced a global processing advantage," and "felt power." In simple words: You are perceived by others as more powerfuland become aware of itthus further enhancing your own self-confidence. So, if you want that promotion at work, you're best to avoid a polo and khaki pants.

As for your suits, just be sure the everything is tailored to fit you perfectly. Nothing screams "rookie" like an ill-fitting jacket and pants.

H/T The Atlantic