Smoking crack sends large quantities of the drug to the lungs, which creates an immediate and intense euphoric effect.
Vicodin withdrawal can occur when someone has been prescribed the drug or when someone is abusing the drug has developed a tolerance and dependence to it.
Long-term alcohol consumption may result in permanent damage to the brain.
The prevalence of current illicit drug and heavy alcohol use is higher among younger workers, especially the youngest workers, than among older workers in the U.S.