Katherine Hepburn - What kind of disease did she have?
I believe that Ms Hepburn had parkinsons disease which causes trembling and shakiness.
She had Essential Tremor, which is a different neurological disorder than Parkinson's disease, although a tremor is one symptom of Parkinson's. You can learn more at the International Essential Tremor Foundation http://www.essentialtremor.org/about_us/about_essential_tremor.php
Other people asked questions on similar topics, check out the answers they received:
Other people asked questions on various topics, and are still waiting for answer. Would be great if you can take a sec and answer them