Body tremors as a sign of influence is most commonly associated with which substance?

Body tremors are often a noticeable physical sign of stimulant use, particularly amphetamines. This substance, which increases the levels of certain neurotransmitters in the brain, can lead to heightened physical activity and agitation, which may manifest as tremors. Users may exhibit increased energy, reduced appetite, and increased alertness, alongside these involuntary muscle movements.

In contrast, substances like cocaine may also cause increased activity and agitation, but they are less commonly associated with tremors when compared to amphetamines. Cannabis typically has sedative effects that do not lead to tremors. Heroin, an opioid, generally results in physical relaxation and drowsiness, which does not align with the symptom of body tremors. Thus, the association of body tremors with amphetamine use is well-documented in substance influence scenarios.