What symptom is indicative of stimulant use?

Rapid speech is a symptom indicative of stimulant use because stimulants, such as amphetamines or cocaine, increase the activity of neurotransmitters in the brain, particularly dopamine and norepinephrine. This heightened activity can lead to increased energy, alertness, and a sense of euphoria, often resulting in a significantly accelerated speaking pace. Individuals under the influence of stimulants may exhibit signs of hyperactivity, talkativeness, and a reduced ability to concentrate on other tasks, which manifest prominently in rapid speech.

In contrast, profound depression is more commonly associated with the withdrawal or comedown from stimulants rather than active use. Dizziness can occur for a variety of reasons and is not specific to stimulant use. Decreased heart rate is typically associated with the effects of depressants rather than stimulants, which usually cause an increased heart rate due to their stimulating effects on the central nervous system.