Ahad Sanwari

Ashton Kutcher got candid recently about how his wife Mila Kunis supported a variety of his efforts.

MORE: Ashton Kutcher poses for sweet family photo after going public with autoimmune disease

In a recent interview with HEYthe actor opened up about training for the upcoming TCS Marathon in New York and the effects it had on his body.

Loading player…

VIDEO: Mila Kunis and Ashton Kutcher share moving video as they raise amazing amount for Ukraine

“The biggest physical change was the transfer of muscle mass from the upper body to the lower body. I lost about 12 pounds,” he said at the time.

He also shared that the biggest motivator was his wife and That 70s show co-star, adding, “My wife [Mila] was super supportive.”

MORE: Mila Kunis and Ashton Kutcher share moving video as they raise astonishing amount for Ukraine

The actor also opened up about what he’s learned over months of rigorous training, saying “surrounding myself with a support system makes tough things a lot easier.

“Establishing a rhythm that you can maintain is not the same as working as hard as you can.”

Ashton gushed that his wife was his biggest supporter

Ashton further documented his journey through his 16-part digital interview series, our future mewhich includes segments of him training alongside several other celebrity guests.

He revealed his biggest motivation was his family, including his two children, daughter Wyatt, seven, and son Dimitri, five.

MORE: Mila Kunis and Ashton Kutcher address controversial parenting decision with hilarious video

MORE: Ashton Kutcher and Mila Kunis make a startling revelation about seldom-seen children

“My basic ‘why’ comes down to leaving life better than what I was given. My daily motivation is my children and my family,” he shared.

His family have been by his side since he revealed earlier in the year that he had been diagnosed with a rare autoimmune disease called vasculitiswhich he spoke about Running Wild with Bear Grylls: The Challenge.

Actor trains for his marathon with other stars in tow

“Two years ago I had this weird, super rare form of vasculitis, which destroyed my vision, my hearing, like my whole balance,” he told Bear.

“It took me about a year to rebuild everything.”

Read more HELLO! American stories here

Do you like this story? Sign up for our newsletter to get more stories like this straight to your inbox.