How does the heart rate typically respond to CNS Stimulants?

CNS stimulants are substances that enhance the activity of the central nervous system. When these stimulants are consumed, they usually lead to an increase in heart rate. This occurs because stimulants like amphetamines, cocaine, and certain prescription medications elevate the levels of neurotransmitters such as norepinephrine and dopamine. These neurotransmitters increase sympathetic nervous system activity, which in turn stimulates the heart and raises its rate.

The physiological response involves the activation of the "fight or flight" response, which prepares the body for heightened activity. As a result, heart rate typically accelerates, reflecting the overall state of increased arousal and alertness induced by CNS stimulants. Understanding this response plays a crucial role in the assessment of potential drug influence on an individual's physical state during evaluations in drug recognition.