Which symptom is a common indicator of stimulant use?

Restlessness is a common indicator of stimulant use due to the way these substances interact with the central nervous system. Stimulants, such as amphetamines and cocaine, increase the levels of neurotransmitters like dopamine and norepinephrine in the brain, leading to heightened alertness, energy, and activity levels. This heightened state can manifest as restlessness or an inability to remain still, reflecting the increased stimulation of the body and mind.

In contrast, options such as obesity, excessive sleeping, and physical pain are typically not associated with stimulant use. Obesity may be linked with other substance use, but stimulants are more generally associated with weight loss due to their appetite-suppressing effects. Excessive sleeping is usually a sign of depressant use, and physical pain does not directly correlate with stimulant consumption, as acute stimulant use may numb pain rather than induce it.