Unlike the alpha male, the sigma male is a loner who values independence ... because they target the platform's main users: teenage boys under 17 years old, the researchers say.

I got my college education on the other side of the Atlantic, at a place where the frat-boy equivalents preferred ... to three of them—the sigma, the beta and the alpha. What are they?

Sigma Alpha Epsilon is a Greek-letter social college fraternity founded at the University of Alabama on March 9, 1856. Of all existing national social fraternities today, Sigma Alpha Epsilon is the ...