Canadian-US actor Keanu Reeves, supposedly a high-profile example of a "sigma male." (Photo by Mark RALSTON / AFP) (Photo credit should read MARK RALSTON/AFP via Getty Images) Are you tired of ...

Some know “sigma” as the 18th letter of the Greek alphabet but it’s also teen slang for a cool dude. According to Know Your Meme, sigma is “referring to a supposed classification for men who are ...

Beth Skwarecki is Lifehacker’s Senior Health Editor and has been writing about health, fitness, and science here since 2015. Beth was the recipient of the 2017 Carnegie Science Award in science ...

Alpha males have competition. These men, who don't see beyond their navel and who stick to this image of raw virility, have slightly lost ground. Sigma men, a sort of "lone wolf" on the fringes of the ...

That infamous sigma male face. Sure, it is often used ironically. But maybe it has a deeper significance. What could it reflect about socio-sexual hierarchies? How could it tie into other cultural ...