EFFECTS OF DRUG ADDICTION ON THE BRAIN
All drugs–nicotine, cocaine, marijuana and others–affect the brain’s “reward” circuit, which is part of the limbic system. This area of the brain affects instinct and mood. Drugs target this system, which causes large amounts of dopamine—a brain chemical that helps regulate emotions and feelings of pleasure—to flood the brain. This flood of dopamine is what causes a “high.” It’s one of the main causes of drug addiction.
Although initial drug use may be voluntary, drugs can alter brain chemistry. This can actually change how the brain performs and interfere with a person’s ability to make choices. It can lead to intense cravings and compulsive drug use. Over time, this behavior can turn into a substance dependency or drug and alcohol addiction.
Alcohol can have short- and long-term effects on the brainand disrupts the brain’s communication pathways. These can influence mood, behavior and other cognitive function.
Brain damage may also occur through alcohol-induced nutrition deficiencies, alcohol-induced seizures and liver disease. In pregnant women, alcohol exposure can impact the brains of unborn babies, resulting in fetal alcohol spectrum disorders.
It is reported that alcohol-induced brain problems can often be corrected with proper treatment. Abstinence from alcohol for months or years can help partially repair thinking abilities, like memory skills.
EFFECTS OF DRUG ABUSE ON UNBORN BABIES
Illicit drug use poses risks for pregnant women and their babies. Drugs may contain impurities that can be harmful to an unborn baby. Pregnant women who use drugs may be more likely to harm the fetus with risky behaviors and poor nutrition. Drug use can lead to premature birth or low birth weight. It can also cause the baby to have withdrawal symptoms (sometimes in the form of neonatal abstinence syndrome), birth defects or learning and behavioral problems later in life.
DRUG EFFECTS ON BEHAVIOR
Substance use disorders can lead to multiple behavioral problems, both in the short- and long-term, which can include:
1PARANOIA
2AGGRESSIVENESS
3HALLUCINATIONS
4ADDICTION
5IMPAIRED JUDGMENT
6IMPULSIVENESS
7LOSS OF SELF-CONTROL
These effects of drug abuse have serious consequences, like missed work, punishable offenses, accidents and injuries. In fact, alcohol and drugs are partly to blame in an estimated 80 percent of offenses leading to jail time in the U.S. These incidents include domestic violence, driving while intoxicated and offenses related to damaged property. Legal and illegal drugs excluding alcohol are involved in about 16 percent of motor vehicle crashes. In the past year, almost 12 million people drove under the influence of illicit drugs, and almost 4,000 fatally injureddrivers tested positive for drug involvement.
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