42 kilometers through the Big Apple: Hollywood star Ashton Kutcher (44) has successfully completed the marathon in New York. In a black T-shirt, shorts and bright pink running shoes, he completed the run in 3:54:01 hours.

With the help of friends and fans, he raised over $1 million in donations for his charity Thorn, which fights against online child sexual exploitation. With the development of innovative technologies, children should be protected from sexual abuse on the Internet.

It wasn't easy for the actor to get in shape, he revealed on Friday on the "Today Show". He lost twelve pounds (5.44 kg) during the preparation. He started training six months ago. "It was brutal on my body. I injured myself halfway through the preparation and I'm only fully fit again now." One thing in particular was particularly painful: "I almost rubbed my nipples while running."

Kutcher revealed in August that he had been diagnosed with a rare disease two years earlier. The star of sitcoms like That '70 Show and Two and a Half Men suffered from "a super rare form of vasculitis," as he revealed in the survival series Bear Grylls: Stars at the Limit. The autoimmune disease "crippled his vision, hearing and his entire sense of balance," Kutcher said.

The healing process took a full year. At times he wasn't sure if he would ever be able to hear, see or walk again. After this terrible experience he was "glad to be alive".