What is one indicator of stimulant influence in an individual?

Restlessness is a common indicator of stimulant influence in an individual. Stimulants, such as caffeine, amphetamines, and cocaine, typically increase alertness and energy levels, which can lead to hyperactivity and an inability to sit still. Individuals under the influence of stimulants may exhibit behaviors such as fidgeting, pacing, or other signs of agitation. This heightened level of physical activity and inability to relax or remain calm creates a clear behavioral sign that reflects the stimulating effects of these substances on the central nervous system.

While increased appetite might be associated with some substances, stimulants usually suppress appetite. Slurred speech is more commonly linked to depressants, and excessive sweating can occur with various substances, but restlessness directly aligns with the characteristics associated with stimulant use.