A study by the U.S.Centers for Disease Control reports that medical care and the loss of worker productivity averages about $3,000 annually for each smoker.

VOA: standard.2010.02.18

Parkinson's disease is a disease involving destruction of motor control and loss of motor control, difficulty moving.

帕金森症会损害运动控制,丧失对运动的控制,变得行动困难

耶鲁公开课 - 心理学导论课程节选