Frankie Muniz doesn't remember "Malcolm in the Middle" after concussions and mini-strokes have robbed him of his memories.
Frankie Muniz's memory loss has robbed him of much of his childhood.
The child actor revealed on "Dancing with the Stars" Monday night that he's suffered nine concussions and several "mini-strokes" that he thinks have affected his long-term memory.
"It makes me a little sad," he said on the show. "Things pop back into my mind (that) I should have remembered."
The 31-year-old actor-turned-race car driver said he has his girlfriend, Paige, write down what they do together in a journal.
"Like, I should have remembered going to Australia. That's something that people remember," he said.
"Malcolm in the Middle" co-star Bryan Cranston, who appeared in a pre-taped interview, said he tries to make sure Muniz doesn't get stuck on lost memories.
"I told him not to worry about what you remember and what you don't remember. They're still your experiences," Cranston said.
"That will be my job. I will tell him, 'Remember this? Remember that from "Malcolm?" What a life for you!'"
The sitcom ran for seven seasons from 2000 to 2006 and also starred Justin Berfield, Erik Per Sullivan, Jane Kaczmarek and Christopher Masterson.
Muniz, who scored a 24 out of 30 for his quickstep to Coldplay's "Adventure of a Lifetime" with "Dancing with the Stars" partner Witney Carson, said he's learning to appreciate his current situation.
"My most memorable year is 2017, because I learned to live in the present," he said.
"I'm happy with my acting career, I'm happy with the decision I made to drive race cars and to focus on music. Even if I don't remember it all, I'm happy."