Now, to the health scare for "malcolm in the middle" star frankie muniz. He's just 27. But he's recovering from a small stroke he had last week. After tweeting about it, muniz gave an interview to... See More
Now, to the health scare for "malcolm in the middle" star frankie muniz. He's just 27. But he's recovering from a small stroke he had last week. After tweeting about it, muniz gave an interview to abbie boudre boudreau. Reporter: The young star of "malcolm in the middle" is speaking exclusively to abc news. I didn't feel right. Reporter: About a health scare just days ago that left him unable to speak. I couldn't say words. And my fiancee was looking at me like I was speaking a foreign language. Reporter: Frankie muniz lost his vision in one eye. His body became numb. I had a headache. I don't know. Reporter: Muniz says his doctors discovered he suffered a mini stroke. Unusual for a man who is not only healthy, but under 30. Experts say fewer than 10% of all strokes happen to people under 45. A big question is why is stroke on the rise in people who are younger? It may be from increase in high blood pressure, diabetes. And also may be due to increased awareness. Reporter: Muniz says he's aware his stressful life, acting and playing in a band, may have played a part. I never had a sip of alcohol in my life. I never had any drugs. Never smoked a cigarette. Reporter: He says he feels back to normal mentally. Physically, he still feels lethargic. I can't get a deep breath in. Still trying to make sense of it. But you know, happy that I'm Reporter: A wake-up call for a young star who says he still plans to play drums with his band, tour next week, marry his fiancee next year, and celebrate his 27th birthday later today. For "good morning america," abbie boudreau, abc news, los angeles. Glad he's getting better. But that is a scary one there. 27. And fit and in shape.
This transcript has been automatically generated and may not be 100% accurate.