Friends is among the cult classic American sitcoms that premiered in 1994. The show followed a group of friends who lived in Manhattan and depicted the lives of these individuals with a humorous note.

Stunning success in halting Huntington's disease with gene therapy offers new hope to those with the disorder—and promises advances against Parkinson's and Alzheimer's.

The premise is appealing: Who wouldn’t want a friend who is available 24/7, always on your side, and never annoyed, bored, or hurt? In theory, artificial intelligence (AI) companions could ease ...