You know them as Xanax, Valium, Ativan and Klonopin. They are the Benzodiazepines so many people use to quell anxiety or induce sleep. They are easy to get used to, and often incredibly hard to kick. And according to new research, they can dramatically increase the likelihood that one will get Alzheimer’s.

+ Jerome Groopman in The New Yorker: Is it possible to control cancer without killing it?