Legendary game show host Bob Barker died of Alzheimer's disease, according to a death certificate authenticated by NBC.

<div class="block">Legendary game show host Bob Barker died of Alzheimer&#39;s disease, according to a death certificate authenticated by NBC.</div>

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Bob Barker's Cause of Death Revealed

Legendary game show host, Bob Barker died of Alzheimer's according to his death certificate, which was authenticated by NBC news. Yesterday. The Prices Right host died at age 99 on August 26. His cause of death had not been previously revealed. Barker hosted the Game Show for 25 years. His publicist previously said he would be buried in a Los Angeles cemetery with his late wife. There will be no memorial service. According to his publicist.