The FDA has approved a new medication for treating Alzheimer's, called aducanumab. It's the first new drug for the disease in almost 20 years, but the FDA's approval comes despite an intense debate over the drug's efficacy and associated side effects.We discuss what we know about the medication and how it will shape the future of Alzheimer's research and treatment.Want to support 1A? Give to your local public radio station and subscribe to this podcast. Have questions? Find us on Twitter @1A.