Psychologists have identified 10 factors that explain why and how we fall in love

Romantic love is shrouded in mystery. What draws people together and how does the falling-in-love process work?

According to Elizabeth Philips, a research psychologist and expert in human-robot interaction, there's actually a fair amount of science that helps explain the phenomenon. Psychologists have identified ten factors that explain why and how we fall in love.

Here are some of the factors that can play a role: