While the signs are noticed by the doctor and people around the addict, the symptoms are known to the addict alone. Example is the case of dilated pupils being a sign while constant sleepiness is a symptom.
Drug addiction - when an individual is dependent on a substance, like a drug, nicotine or alcohol, he/she is unable to manage his/her use of that substance. Even if the substance poses a danger, they will still take it whether or not they know the dangers.
Drug addiction can lead to strong cravings. Addicts may desire to quit (give up), however experiences it very hard to do without assistance.
The signs and symptoms of substance reliance change as indicated by the individual, the substance they are dependent on, their family history (hereditary qualities) and individual conditions.
Signs and symptoms of substance enslavement may include:
Certain alcohol or substance abusers who aren't technically addicted might also be affected by or cause a few of the above-mentioned descriptions, though these abusers don't generally experience the withdrawal symptoms of addicts or the exact same obsession to use the substance.