He turned around to me at a corner and he said,

Helen Fisher, I'm going to marry you and this time I'm not drunk.

Even as dating technology advances.

They want AI to help them sort through matches, create a profile.

One anthropologist who studied love for decades says science still shows us the basics of what we look

for in a mate.

I've been able to watch who's naturally chemically drawn to whom.

I'm Nailaboodoo and from Axios, this is one big thing. One December night in 2005, Dr. Helen Fisher got a call in her New York City apartment

with a question from the people at match.com.

Why do you fall in love with one person rather than another.

So I began to look into the brain and in fact I was able to establish

that we've evolved four basic styles of thinking and behaving link with the

dopamine serotonin testosterone estrogen system.

Fisher who studied human behavior specifically love and attraction for her entire career.

Use that research to create a questionnaire that's been taken by 15 million people in 40 countries.

And I've been able to watch, who's naturally,

chemically drawn to whom.

And as it turns out, if you're very high

on the dopamine scale, you go for people like yourselves,

risk-taking, novelty now seeking curious creative people are

drawn to people like themselves same thing with high serotonin people who are very

traditional conventional follow rules also want somebody like themselves.

...