8.1.2.4.2 Narcotics

Dopamine is a neurotransmitter that influences the brain's processes and its reward system. Drugs that affect this system are often the reason people take them, often as an escape from the realities of life. Serotonin is another important neurotransmitter that regulates mood and well-being, but it also plays a role in anxiety and restlessness. The use of substances like ecstasy and hallucinogenic drugs can disrupt the serotonin system, potentially triggering depression and anxiety disorders. Noradrenaline is both a hormone and a neurotransmitter produced in the brain and nerves during stressful situations. It controls the body’s energy levels and is often secreted alongside adrenaline. The primary function of noradrenaline is to supply the body with energy. Stimulants such as MDMA increase the secretion of noradrenaline, preparing the body for action, such as giving it the energy needed to dance all night. Endorphins are the body’s natural painkillers, impacting our breathing, mood, and hormonal system. Substances like heroin, morphine, and other opioids affect the secretion of endorphins. (Note: The content about neurotransmitters and substances is not mandatory knowledge for the theory or driving test.)