What you need to know about Parkinson's - Disease the late Joseph Kamaru had

The late Kikuyu benga maestro Joseph Kamaru was suffering from Parkinson's disease which is mostly characterized by the trembling of hands, imbalance while walking and constant involuntary fidgeting of the body. 

Back when we were young in the village, there was this old man who had the same kind of sickness and we thought him to be cursed or something. And then someone came up with a myth that when someone touches or kills a lizard, they are going to have the 'trembling' disease.