Award-winning actress and author Jamie Lee Curtis believes that “what you feel inside comes out on the outside. When you aren’t regular, you don’t feel well.” Jamie Lee, who calls herself an “unlikely health advocate,” says she didn’t realize how big of a problem that digestive health was when Dannon asked her to be the spokesperson for Activia yogurt eight years ago. She says that a well-being index recently conducted by Dannon found that 90 percent of people have some digestive issue and half of those say it impacts their lives.