[Solved] In some studies it has been found that unionization increases productivity. Heterosexual Men: Men who are sexually attracted to women. Masturbate: The act of sexually stimulating oneself, often leading to orgasm. View Pornography: The act of looking at or watching explicit sexual material, typically intended to stimulate erotic rather than aesthetic or emotional feelings. Evolutionary Perspective: A theoretical approach that explains various aspects of human nature as a result of the process of evolution by natural selection, highlighting the adaptive value of behaviors and physical traits.