ead and analyse the following news. then answer the questions 19 - 21.
Neurologist Dr Rustico Jimenez warns Manny Pacquiao, Philipino boxer that his hand's shaking might be sign of Parkinson' disease, which is a degenerative disorder in the part of the brain that produces chemicals to control body movement called Dopamine. If the brain produces less chemicals, it will cause muscle failure,hand's shaking