> Kim Cattrall, star of Sex and the City was surprised to be diagnosed with a thyroid condition.
She said: "When I thought of thyroid problems, I thought of goiters or hyperactiveness or poppy eyes. But after looking for information on it on the web, I saw that it was an autoimmune problem that makes you tired and can lead to depression."
> Kelly Osbourne, pop star and daughter of legendary Black Sabbath metal rocker/reality TV dad Ozzy Osbourne, has revealed that her weight loss of almost 30 pounds in her early 20s was due to an untreated thyroid condition.
> Chat show host Oprah Winfrey was feeling sluggish and eventually discovered the problem was an out-of- balance thyroid. She said, "My body was turning on me. First hyperthyroidism, which sped up my metabolism and left me unable to sleep for days. And then hypothyroidism, which slowed down my metabolism and made me want to sleep all the time."
> Other well-known faces with a thyroid condition include Rod Stewart and George Bush.