<span>The answer is addiction. Addiction is a state of a person being dependent to the drug or substance which makes her or him to feel satisfied by it. This is a state of mind that is a result of abusing the substance. Addiction is a worse case of abuse because in addiction, the person is not aware and cannot control the whole body especially the state of mind which can lead to unconscious acts.</span>
A reserve of value is the function of an asset that can be saved, retrieved and exchanged at another time. More generally, a store of value is anything that retains purchasing power in the future.
