Love and Being in Love: Love is in our mind and is fueled by chemicals and chemistry.
New love produces the chemistry in love we all seek.

Throughout history, mankind has deemed the heart the center of love. But scientists tell us love is all in our mind or brain. And fueled by chemicals and chemistry.

Infatuation

When two people are attracted to each other, a virtual explosion of adrenaline-like nuerochemicals gush forth. Fireworks explode and we see stars. PEA or phenylethylamine is a chemical that speeds up the flow of information between nerve cells.

Also, involved in chemistry are dopamine and norepinephrine, chemical cousins of amphetamines. Dopamine makes us feel good and norepinephrine stimulates the production of adrenaline. It makes our heart race!

These three chemicals combine to give us infatuation or "chemistry." It is why new lovers feel euphoric and energized, and float on air. It is also why new lovers can make love for hours and talk all night for weeks on end.

This is the chemistry or the love sparks we all seek.

Actually when we have chemistry with someone, it's not exactly flattering. In fact, some might call it insulting.
source : www.loveformulas.com