Tom Hanks Credits: Facebook/Tom Hanks

Oscar-winning actor Tom Hanks is the latest victim of an occupational disease. In an interview with "The Late Show with David Letterman," he said he was diagnosed with Type 2 diabetes. His doctors claimed the weight fluctuations he underwent to play different onscreen characters in his award-winning portrayals might have triggered the condition.

He told Letterman that he had been suffering from diabetes symptoms for 20 years but it was only recently diagnosed.

"I went to the doctor and he said 'You know those high blood sugar numbers you've been dealing with since you were 36? Well, you've graduated. You've got Type 2 diabetes, young man,'" Hank said.

For "A League of Their Own," he had to put on 30 pounds to play the character of a basketball coach and for "Cast Away" he lost 50 pounds.

Dr. Holly Phillips, a medical doctor, said to CBS, "In dramatic weight gain and loss, the equilibrium of the body is just completely off. So that might predispose him to developing Type 2 diabetes later."

"He'll have to watch what he eats very closely, he'll need to exercise regularly, but there's no reason he can't live a perfectly normal life," he added.

His latest Facebook status reads, "Yep, I have Type 2 diabetes. Type 1 is VERY SERIOUS! Type 2 I can manage with good habits. I shall! Hanx."

Letterman commented on how trim Hank was then the actor revealed about his condition.

"It's controllable. Something's going to kill us all, Dave. My doctor said 'If you can weigh as much as you weighed in high school you will essentially be completely healthy and will not have Type 2 diabetes. I said 'Well, I'm gonna have Type 2 diabetes because there is no way I can weigh as much as I did in high school.'"

Hank said that he was a skinny boy in school and weighed only 96 pounds.

Type 2 diabetes is linked to poor diet, obesity and inactive lifestyle and can later on lead to complications.