Alzheimer’s research has stalled for decades. That’s finally changing.This episode was produced by Miles Bryan, edited by Amina Al-Sadi, fact-checked by Hady Mawajdeh and Avishay Artsy, engineered by Bridger Dunnagan and David Tatasciore, and hosted by Sean Rameswaram. This episode was produced in partnership with Vox's Future Perfect. A scan of the brain of a patient affected by Alzheimer's disease. Photo by BSIP/UIG via Getty Images.Listen to Today, Explained ad-free by becoming a Vox Member: vox.com/members. New Vox members get $20 off their membership right now. Transcript at ⁠⁠vox.com/today-explained-podcast⁠.⁠Learn more about your ad choices. Visit podcastchoices.com/adchoices