Poor old Joshua Jackson is such a workaholic he makes himself ill.

The popular Dawson's Creek star worked for nearly 60 days, surviving on a diet of pills, but as soon as he stopped work he ended up ill in bed.

Joshua, who played Pacey in the popular TV drama, says, "I worked for 58 days without a break. I kept going by mainlining multivitamins and ginseng, but as soon as the shooting was over I got the flu. I guess that's nature's way of telling you you're doing something wrong."