United Kingdom, April 22 -- Frankie Muniz is at "a new low" with his mental health.

The 39-year-old actor - who has carved out a second career as a NASCAR racing driver in recent years after initially finding fame as a child star - took to social media on Sunday (21.04.25) evening to open up about his struggles.

He wrote on X: "If I'm being 100% honest... Mentally/emotionally I may be at a new low. Just wanted to say it out loud."

His comments come just weeks after he was competing in a race and eventually finished in 23rd place after being forced to make a pit stop when he struggled to control his vehicle.

He later said that that the whole thing was the "hardest thing [he] has ever done and cost him "17 or 18 laps" in total.

The for...