You probably seek out your own kind if:

* You have an active dopamine system, meaning you are reward-driven, impulsive, and easily bored.

* You have a seratonin-dominant system, meaning you’re more risk averse and sociable, tend to follow rules, and are habit-driven.

You probably fall for opposites if:

* You have a testosterone-dominant system (note: this isn’t only relevant for men), meaning you’re analytical, competitive, and emotionally contained.

* You have high estrogen and oxytocin levels, meaning you are empathetic, nurturing, and introspective. Read More