The Effects of Excitants on the Nervous System
Excitants are substances that increase the activity of the nervous system and can cause excitement, alertness, and increased energy. Examples of excitants include caffeine, nicotine, and other stimulants. These substances work by increasing the levels of certain neurotransmitters in the brain, such as dopamine and norepinephrine, which can lead to feelings of euphoria and improved concentration. However, excessive use of excitants can also lead to negative side effects such as anxiety, insomnia, and addiction.
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