Health Risks Physical or psychological damage may occur when the following substances are abused. Here are some of the health risks related to each substance. Alcohol Alcohol consumption causes a number of marked changes in behavior. Even low doses impair judgement and coordination and increase the incidence of aggressive behavior. Very high doses can cause respiratory depression and death.
Alcohol intoxication is equivalent to a drug overdose.
If combined with other depressants of the central nervous system, the effects of alcohol are multiplied. Repeated use of alcohol can lead to change in tolerance and dependence. Cessation of alcohol intake can produce withdrawal symptoms including tremors, hallucinations, convulsions, and death. Long-term consumption of large quantities of alcohol can lead to permanent damage to vital organs such as the brain and the liver. Women who drink even small amounts of alcohol during pregnancy may give birth to infants with fetal alcohol syndrome.