There is more and more data indicating that there is a biological basis to your political views.

We evolved in a tropical climate where the smells of plants and flowers were all around us. We spent a lot of time in the trees with a lot of sunlight and no clothes.

We're not very dangerous animals; we don't have a horn like a rhino or quills like a porcupine.

Most of us make up our minds in the first three minutes of meeting someone whether there's a potential for a relationship.

Barriers tend to intensify romance. It's called the 'Romeo and Juliet effect.' I call it 'frustration attraction.'

The human brain is built to compare; it's Darwinian to consider an alternative when one presents itself.

Any kind of novelty or excitement drives up dopamine in the brain, and dopamine is associated with romantic love.