Final answer:
Nitrous oxide can have both short-term and long-term effects on the central nervous system (CNS). In the short term, it can cause euphoria and impaired motor function, while in the long term, it can lead to dependence and withdrawal symptoms.
Step-by-step explanation:
Nitrous oxide, also known as laughing gas, can have both short-term and long-term effects on the central nervous system (CNS). In the short term, it can cause euphoria, talkativeness, relaxation, and impaired motor and sensory function. It can also decrease blood flow to the brain. In the long term, repetitive use of CNS depressants like nitrous oxide can lead to physical and psychological dependence, as well as tolerance and withdrawal symptoms. It's important to use nitrous oxide responsibly and under medical supervision.