A fat-loss drug is reportedly helping people sleep better, although its long-term effectiveness for weight loss is uncertain, with some studies suggesting that people regain a significant portion of lost weight after stopping treatment. The drug, a type of GLP-1 weight loss medication, may also have other health benefits, such as preventing fatal complications from heart attacks. However, access to the drug may be limited due to shortages and changes in Medicaid coverage, potentially hindering its impact on the fight against obesity.