What can occur due to physical abuse of stimulants?

The physical abuse of stimulants can lead to increased heart rate due to the way these substances interact with the body's nervous system. Stimulants, such as amphetamines and cocaine, stimulate the central nervous system, leading to heightened levels of neurotransmitters like norepinephrine and dopamine. This surge results in an acceleration of heart function as the body enters a heightened state of arousal, which can be felt as a racing heart or palpitations.

Understanding this phenomenon highlights the importance of recognizing the physiological impacts of stimulant abuse, as the increased heart rate can lead to serious health complications, including cardiovascular issues. In contrast, the other choices either describe effects not typically associated with stimulant abuse or represent reactions that differ significantly from the common consequences of stimulant misuse.