Here’s when to use it—and when not to Mel Robbins’s best-selling book, The Let Them Theory, has captured the imagination of ...

Following the release of Mel Robbins' book about the phenomenon, the 'let them' theory has gone viral online. From its origin ...

Why Mel Robbins’ “Let Them Theory” hits home: you don’t have to fix everything or explain yourself. Just let people be — and ...

Millions of people are embracing a little two-word mantra and helping the creator of it hit the top of the charts. Mel ...