Well, as far as we can tell, the changes that this, that these GLP-1 receptor agonist drugs, that's the technical name, the changes that these drugs cause to the body, to the brain, to the structure of the brain, to the incentive structures within the brain, the hunger centers within the brain, the metabolism, etc., they're transient. What does that mean? Well, you stop taking the drug, the changes cease, right?