Drugs act on the neurons in the limbic system.
Drugs can alter brain chemistry by affecting the way neurotransmitters are produced, released, or reabsorbed in synapses. They can enhance or inhibit the activity of certain neurotransmitters, leading to changes in mood, behavior, and cognition. Additionally, some drugs can directly interact with specific receptors in the brain to produce their effects.
Drugs can act in various regions of the brain to exert their effects.
Interneurons are located in the spinal cord. They act as the middlemen in transmitting signals between sensory neurons (that detect stimuli) and motor neurons (that generate a response). In a spinal reflex pathway, after receiving sensory input from a sensory neuron, the interneuron processes the information before signaling the motor neuron to carry out a response.
The second one.
Since drugs are addicting it is not hard to become dependent on drugs. Drug dependence may lead to abuse as the addiction may lead to an overuse and complete reliance on drugs that may not be readily available to you. This may also lead to the fabrication of drugs using household materials or household cleansers which is in itself an abuse of potentially addictive substances. Abuse of prescription medicine or even non-prescription medicine can also be seen as abusive to drug use and is therefore drug abuse.
acetylcholine
The act of helping gives you all the pleasure or reward you require for the act. You don't expect to be paid or receive any other reward for it.
Legal drugs are drugs that are perscribed just for you and you take them as it is written on your perscription. Illegal drugs are any drug you can buy on the street The question asks about 'acts' not 'drugs'. An illegal act is against the law, a legal act is permitted.
neuro drugs
So they can catch you in the act of doing drugs.
generally
Occasionally some crimes DO pay a reward for information. However, most do not and the only reward is the personal type - knowing you did the right moral and ethical act.