From my studies of genetics and neuroscience I have come to believe that people fall into four broad personality types - each influenced by a different brain chemical: I call them the Explorer, Builder, Director, and Negotiator.
Natural beauty really entices men. They will tell you this time and time again, and studies consistently prove it.
Until recently, we regarded love as supernatural. We were willing to study the brain chemistry of fear and depression and anger but not love.
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