This journal article examines the relationship between handedness, sexual orientation, and gender-related personality traits. The introduction summarizes previous research finding associations between non-right handedness and homosexuality in both men and women, as well as gender identity disorder. Specifically, homosexual men were 34% more likely to be non-right handed than heterosexual men, and homosexual women were 91% more likely to be non-right handed than heterosexual women. The article also reviews evidence of slightly higher rates of left-handedness in males compared to females. Finally, a few studies found that non-right handed women tended to score higher on instrumentality and lower on expressiveness, exhibiting more male-typical personality traits.