Below, Business Insider has rounded up some of the most compelling scientific insights about the traits and behaviors that make men more appealing to women. None of the items on this list require you to get cosmetic surgery or do a major personality overhaul.
We're talking small tweaks, like acting nicer and swapping your deodorant.
As psychologist and writer Scott Barry Kaufman notes, the halo effect works in other ways too.
In a 2014 Chinese study, more than 100 young people looked at images of men and women's faces and rated them on attractiveness.
As she shared at Psychology Today, it goes like this: "First the woman smiles at her admirer and lifts her eyebrows in a swift, jerky motion as she opens her eyes wide to gaze at him.
"Even though beauty is an assessment of fitness value, there is no reason why assessment of fitness needs to be purely physical," Kaufman writes, meaning that acting kind can make you appear more attractive.
A 2010 cross-cultural study — with participants from China, England, Germany, and the US — found that women are most attracted to men wearing red.
Participants rated the men pictured on several traits, including attractiveness.
That women said the most attractive beard length was heavy stubble. "An intermediate level of beardedness is most attractive," they add.