My aunt has had Parkinson's disease for the last fifteen years. For the previous five years, she had trembling hands and could not move heavy things, but lately, her health has deteriorated. She cannot even hold or carry her phone, and her hands tremble when reading the newspaper. So now my question is, can we do anything to stop the trembling, and will her daughter acquire this condition in the future? Is this an inherited disease? Is there anything that prevents her daughter from getting it?