Here's a joke: A man is sitting on the porch with his wife one night when, out of the blue he says, "I love you." His wife says, "Was that you? Or was that the beer talking?" The man says, "That was me — talking to the beer."
Maybe you laughed at that and maybe you didn't, but either way, cognitive neuroscientist Scott Weems wants to know whether you found it funny. In his new book HA! Weems explores the science "of when we laugh and why."