Former teen heartthrob David Cassidy recently revealed that he has been diagnosed with dementia. In an exclusive interview with Dr. Phil airing Tuesday, the music legend reveals how he learned he was suffering from memory loss, and how his family has been plagued by the debilitating disease.

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Cassidy, who says he was diagnosed two-and-a-half years ago, says it was his friends and family who suggested something wasn’t right about his behavior.

“When friends of yours or family members begin to say to you, ‘Remember, I just told you this two days ago,’ and there’s no memory of it … that’s when I began to be very concerned,” the singer and actor tells Dr. Phil.

WATCH: What David Cassidy Says He Told His Son After He Was Diagnosed With Dementia

“Was that what caused you to say, ‘I need to go get myself checked?’” Dr. Phil asks.

“Oh, my God, yes,” Cassidy replies.

The 66-year-old, who shot to super-stardom in 1970 as Keith Partridge on the hit TV series The Partridge Family, says that he can remember details from the past, but it’s recalling recent conversations and events that causes him difficulty.

WATCH: David Cassidy Opens Up About His Past Binges With Alcohol

In the video above, Cassidy also opens up about taking care of his mother who battled dementia. On Tuesday’s episode, watch a clip from one of Cassidy’s recent performances, and hear what he says about rumors that he was intoxicated during it. Check here to see where you can watch the exclusive interview.

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 Life in crisis?

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