The veteran singer, 79, who went public with his mental health battle in 2011, has entered the final phase of the disease and his wife Kim has revealed Glen is no longer able to verbally communicate, reported Rollingstone magazine.
"He's healthy, he's content. He's lost most of his ability to communicate verbally. He has severe aphasia (impairment of language), but he still understands the universal language of smiles and kisses, and he enjoys food."
Kim, who has been married to Glen for 33 years, admits that while the past few years have been difficult, she and her family are keeping a positive attitude by simply treasuring whatever time they have with the singer.