I ran across this video and wanted to share it here. Back in 2006, Helen Fisher shared some of her research on the brain chemistry of love.  It’s a bit longer than most TedTalks, so if you’re running short on time, I recommend jumping to minute 7:45-13:20 where she talks about the impact of women in the workforce and gender differences in the brain or to minute 13:20-18:00 where she talks about sexuality, love, and marriage.