Love: an insurance policy

"... And what is love? Love is apparently a form of "long-term commitment insurance" that ensures your mate is less likely to leave you, should your legs fall off or your ovaries fall out. Take that, Danielle Steele – you may think you live in 2009 but your genes are still in the stone age, with only chest hair between you and a bloody death. We also get data which confirms that, due to the chemicals your brain produces – dopamine, norepinephrine and phenylethylamine – you are, when you are in love, technically what I have always suspected you to be – mad as Stalin!"
                                                                                      in Why Women have sex - The Gardian 

Ah!