Gay men are more likely to be Left-handed than heterosexuals.

Gay individuals are more likely than straight men to have the hair at the back of their head grow in a counterclockwise direction.

These are just a few of the findings Cal State Fullerton professor Richard Lippa has discovered over past years while researching the differences among gay and straight men.

“Over the past 20 years, a lot of my research has focused on peoples interests and how such interests differ in men and women and in gay and straight people” writes Lippa, in an essay discussing his investigative research.

Are there some on-average differences between heterosexual and homosexual individuals on some physical and behavioral level, and if there are differences, what are their implications for how sexual orientation develops?

Lippa has devoted years exploring this very question. To assist in understanding the concept that this is an “on average” study, he uses the example that, “on average, men are taller than women,” Lippa said in a e-mail interview. …