How Does It Work?

This technique nearly guarantees you’ll follow through on any commitment you choose to make. As Nir Eyal wrote about in his book, he made a “burn or burn ” pact to finally get himself to start exercising regularly. His precommitment: He would either burn some calories by exercising daily or burn a $100 bill. Today, at 43, he says that he is in the best shape of his life.