How does Anna [Lembke] work with clients? She's a psychiatrist. One of the first steps that she thinks about, and I think this is valuable for any of us that are trying to cope with our own addictions, is she does a four-week dopamine fast, which means a four-week total abstinence from the behavior that one is trying to rid themselves of. She said that 80% of her clients or patients will feel better after the four-week fast.