A woman feeding her boyfriend cake in a cafe
  • The birth order dating theory has been going viral on social media.
  • Because birth order can influence your personality, it might also impact who you date.
  • A psychologist explained why birth order compatibility feels so true for some people.

When it comes to dating, it's common to have a type. You might only date other runners or always fall for tech bros. Or, if you were a middle child, you might only date people who were the youngest child in their family, according to the birth order dating theory.