'Star Trek' legend Leonard Nimoy has been diagnosed with a serious lung disease.
The actor - who played Spock in the sci-fi series - is suffering from Chronic obstructive pulmonary disease (COPD), despite giving up smoking 30 years ago.
Revealing his illness on Twitter, he wrote: "I quit smoking 30 yrs ago. Not soon enough. I have COPD. Grandpa says, quit now!! LLAP."
The disease is actually a collection of lung complaints, including chronic bronchitis, emphysema and chronic obstructive, which make it extremely difficult for the sufferer to breathe.
Leonard as Spock in 'Star Trek'
Leonard had a cameo in the most recent Star Trek film 'Into Darkness' as Spock Prime last year.
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