The "bird test" is going viral on TikTok as a way to assess the health and longevity of a relationship. But the driving theory behind the test isn't new — it's backed by research from one of the ...

Add Yahoo as a preferred source to see more of our stories on Google. TikTokers say they've discovered the secret to predicting whether a couple will last or eventually breakup − and psychologists say ...

The Bird Theory, also called the 'bird test', is a TikTok trend that originated two years ago, but recently resurfaced on the platform. Simply put, it's a short and swift experiment to assess how much ...