Legendary actor Alan Alda has revealed he has Parkinson’s disease on CBS This Morning. Famous for his role on M*A*S*H and later as presidential contender Arnold Vanick in West Wing, the Emmy-winning said he was diagnosed three years ago.

‘I was diagnosed three-and-a-half years ago and I’ve had a full life since then,’ he said.

Alda added that he decided to share his diagnosis because ‘I thought it’s probably only a matter of time before somebody does a story about this from a sad… point of view, which is not where I am.’

‘I’ve acted, I’ve given talks, I help at the Alda Center for Communicating Science at Stony Brook, I’ve started this new podcast.’

On his Twitter page, he wrote more about his full life:

I decided to let people know I have Parkinson’s to encourage others to take action. I was Diagnosed 3 and a half years ago, but my life is full. I act, I give talks, I do my podcast, which I love. If you get a diagnosis, keep moving!