Running time indicated on container: approx. 60 minutes; actual running time: 54 min. "Subtitles are a function of the disc and serve the same purpose as closed captions"--Container. Special features: Inside the mind of Alzheimer's -- The second victim -- Participating in a clinical trial -- Identifying Alzheimer's -- Untangling tau. Originally broadcast in 2016 as an episode of the television series Nova.

Alzheimer's disease ravages the minds of over 40 million victims worldwide. The cause of Alzheimer's and whether it can be stopped is one of the greatest medical mysteries of our time. Join courageous patients participating in clinical trials, and then go behind the scenes of the major drug trials to see how researchers target and test therapies that may slow and even prevent Alzheimer's. Chronicling disease -- The human toll -- Patterns of illness -- The race for a cure -- Promising results.