Did Kirk Douglas have undiagnosed ADD?

Read this Roger Ebert interview with Kirk Douglas from 1969. It seems like there’s something odd about Kirk - like he had ADD. At the least, he comes across as totally hyper - not like I imagined him to be at all. (And certainly not like Michael Douglas behaves from interviews I’ve seen).

Am I off base here? Does his behavior in that interview seem rambling and disconnected to anyone else?