Answer:
Heart and lungs
Explanation:
The more harder that you work the more your heart is going to race and the more your lungs are going to get tighter because they are working together to make the body function the way it is supposed to
True, driving a motor vehicle after taking substances which alter the central nervous system can have side effects which include impaired attention, reaction time, and vision.
The substance basically reacts to the nervous system just like anesthetic. The risks of taking any type of substance includes drowsiness, blurry vision, ignoring road signs, and lowering their reaction time.