Using crack cocaine can result in constricted blood vessels, increased temperature, heart rate, and blood pressure, and risk of cardiac arrest and seizure.
Severe depression can result from stopping use of anabolic steroids; this condition can be life-threatening if the individual is depressed enough to commit suicide or harm themselves.
Users of Ecstasy will typically feel the effects of the drug in 30-60 minutes after consumption, hitting a peak at approximately 1-1.5 hours, reaching a plateau that lasts about 2-3 hours, followed by a comedown of a few hours, which may be accompanied by fatigue and minor effects.
Older children of alcoholics are more likely to experience symptoms of depression and anxiety such as staying in their rooms for long periods of time and not relating to other children, claiming they "have no one to talk to."