Asthma is the answer to your question
The part of your brain that controls your heart and lungs is the Medulla, which is the lowest part of the brain stem. Therefore, the answer to your query is 2) Brain Stem. Hope this helps and have an extraordinary day!
No, organisms (any living being) made of one cell are classified as unicellular. Although anything made of two or more cells are multicellular. Although this is off topic, anything acellular is lacking cells (though it is controversial whether any acellular organism is living or not.)
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.