Motdakasha: I agree love definitely has a physiological basis but our understanding of the brain is too primitive to make applied research of love reasonable. The relationships between chemicals active in the brain and love are very strong. Still, I think it will be a while before we develop a true causal relationship between oxytocin, dopamine, etc and what we call love. Those articles are interesting and Dr. John Marsden is a respected researcher in substance abuse. I have to admit I find it funny though that he is trying to take credit for a Freudian hypothesis:
"Dr Marsden's research for the BBC's Body Hits series suggests people look for similar features to themselves in a partner as they are searching for characteristics in their mother and father, who have already successfully raised a child"
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