Emma Heming Willis has shared "the sad truth" about Bruce Willis' dementia battle.
The 44-year-old took to Instagram to share a heartbreaking update with fans as she admitted "there is no cure" to help her husband fight the degenerative disease.
"The sad truth is is that there is no cure for Alzheimer's or dementia. No amount of vitamin D or B is going to cure a degenerative disease," she said in a video.