Which of the following is an effect of cocaine?

Heightened awareness and energy is a well-documented effect of cocaine due to its stimulating properties. Cocaine primarily acts on the central nervous system as a powerful stimulant, blocking the reuptake of neurotransmitters like dopamine, norepinephrine, and serotonin. This leads to increased levels of these neurotransmitters in the brain, resulting in heightened alertness, increased energy, and an overall sense of euphoria. Users often experience a surge of confidence and can feel more sociable and alert after using cocaine. This stimulation can contribute to behaviors often associated with increased motivation or focus, making heightened awareness and energy a clear and recognized effect of cocaine use. Other choices like increased sleep, emotional numbness, and intense tranquility do not accurately represent the typical effects associated with cocaine consumption.