1. Helene Fisher
Prasser, Wolte, Lampl

2. Biography born in 1945 is an anthropology professor
has studied romantic interpersonal attraction (for over 30 years)
she is an expert on the biology of love and attraction

3. Research she has written five books
she proposed that humanity has evolved three core brain systems for mating and reproduction:
lust - the sex drive or libido
romantic attraction – romantic love
attachment - deep feelings of union with a long term partner

4. 2004 Love can start off with any of these three feelings
First sex  then fall in love
fall in love first  then have sex
sex drive evolved to initiate mating with a range of partners
romantic love evolved to focus one's mating energy on one partner at a time
attachment evolved to enable us to form a pairbond
People can list the things they dislike about a sweetheart, but they sweep these things aside and focus on what they adore.
Most important is obsessive thinking.

5. Experiment 49 people into a brain scanner
17 had just fallen madly in love
15 had just been dumped
17 reported they were still in love after an average of 21 years of marriage

6. Thank you for your kind attention!!