Nimoy diagnosed with chronic lung disease

Leonard Nimoy has been diagnosed with chronic lung disease, and has taken to twitter to urge smokers to kick the habit.

The 82-year-old actor - famous for playing Mister Spock in the original 'Star Trek' TV series and movies - has developed obstructive pulmonary disease, despite quitting smoking 30 years ago, and has urged his fans to ditch the cigarettes before it's too late.