Bruce Willis, the prolific action-movie star, has been diagnosed with aphasia — a disorder that affects the brain’s language center and a person’s ability to understand or express speech — and will step away from acting, his ex-wife, Demi Moore, announced in an Instagram post Wednesday.

"To Bruce’s amazing supporters, as a family we wanted to share that our beloved Bruce has been experiencing some health issues and has recently been diagnosed with aphasia, which is impacting his cognitive abilities,” Moore’s post reads. "As a result of this and with much consideration Bruce is stepping away from the career that has meant so much to him.

"We are moving through this as a strong family unit, and wanted to bring his fans in because we know how much he means to you, as you do to him,” it continued. "As Bruce always says, ‘Live it up,’ and together we plan to do just that.”