Aphasia is the name of the illness that forced him to "retire. It is a language disorder caused by brain damage. Most often, these result from a stroke or head injury.
The sad announcement was made public on social media by actress and singer Rumer Willis, the eldest daughter of Bruce Willis with his ex-wife Demi Moore.
Bruce Willis' career began in the early 1980s with roles in films such as Sidney Lumet's "The Verdict". His career exploded later that decade, thanks to his starring role opposite Cybill Shepherd in the ABC series "Moonlighting" and his portrayal of John McClane in the 1988 action film "Die Hard," which gave Willis his first major franchise.
Over his four-decade career, Willis' films have grossed more than $5 billion worldwide.
Bruce Willis has appeared in blockbusters such as "The Fifth Element" (1997), "Armageddon" (1998), and "The Sixth Sense" (1999). His other classic films include "The Last Boy Scout" (1991), "Death Becomes Her" (1992), "Pulp Fiction" (1994), and "12 Monkeys" (1995).
Bruce Willis has been nominated for five Golden Globes (winning one for "Moonlighting") and three Emmys (winning one for "Moonlighting" and another for his guest role on "Friends").