6. Malcolm Young
Malcolm Young (1953-2017) had Alzheimer's disease and died at the age of 64. He was the co-founder of the rock band AC/DC and played the guitar since 1969. Young was considered one of the best rhythm guitarists in music. He broke his fans’ hearts by announcing his retirement from music due to dementia caused by Alzheimer’s. He suffered from complete loss of short-term memory and often couldn't remember the little things that made his life exciting.
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