Multiple choice

This brain chemical makes someone who is just starting to fall in love feel, "head over heels."

  1. dopamine

  2. oxytocin

  3. vasopressin

  4. phenylethylamine

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Phenylethylamine (PEA) is a trace amine that acts as a stimulant and is associated with the initial, intense feelings of infatuation often described as being head over heels.