I am not going to post all of the studies because there are widely available. The main three conclusions I’ve seen are: During fertile period women are overly attracted to more robust and symmetrical males. The more assymetrical her long term partner, the more she is attracted to other males during the fertile window. Essentially, women are programmed to cheat on genetically inferior males. Furthermore, female orgasm is highly correlated to mate symmetry, male stmmetry is the biggest predictor of female orgasm, more so than penis size or masculinity. Now, I am not trying to degrade women or men, it is just biology. I am trying to discuss whether it is healthy for the woman. As a male I often feel the urge to have sex and I feel big urges when I see a girl with wider hips and narrow waist. I feel frustrated when I do not get sex. Do women feel the same when they don’t get to have sex with those particular men (even when they are in a relationship with less attractive men)? I mean women are more selective biologically, that is why I am asking?