What symptom commonly presents in inmates under stimulant influence?

The presence of anxiety and grinding teeth, also known as bruxism, is commonly associated with the influence of stimulants in individuals, including inmates. Stimulants, such as amphetamines and cocaine, can lead to heightened levels of anxiety due to increased stimulation of the central nervous system. This heightened state can create feelings of restlessness, nervousness, and agitation.

Additionally, grinding teeth is a physical manifestation that can occur as a side effect when someone is under the influence of stimulants. This jaw clenching and grinding often happens unconsciously and is linked to increased muscle tension and stress often experienced during stimulant use. Therefore, the combination of anxiety and teeth grinding is a key symptom that many people under stimulant influence may experience, making this option the correct choice.