A column about the science of sex. Contact me about The Sex Files at popsci [dot] thesexfiles [at] gmail [dot] com
Could Scientists Have Found a Gay Switch?
What Our Eyes Say About Our Sexual Preferences
Does a Splash of Red Make a Woman More Attractive?
How Men Can Decode Women’s Menstrual Cycles
Can Animals Really Be Gay?
What is the Point of the Female Orgasm?
The Science of Gaydar