Long-term and excessive use of alcohol during the adolescent and young adult years is most likely to cause damage to which of the following organs?

Long-term and excessive use of alcohol during the adolescent and young adult years is most likely to cause damage to which of the following organs?

• A. spleen
• B. thyroid
• C. liver
• D. lungs

Answer: (C)

Long-term, heavy alcohol use during adolescence and young adulthood mainly harms the liver because the liver is the body’s central organ for metabolizing alcohol. When alcohol is consumed, enzymes convert it into acetaldehyde and then to other metabolites, a process that changes the cell’s balance of NADH and NAD+. This shift promotes fat buildup in liver cells (steatosis) and, with ongoing exposure, leads to inflammation and injury. Over time, continued damage can progress to alcoholic hepatitis and eventually fibrosis and cirrhosis, severely impairing liver function. The developing liver in teens and young adults is particularly vulnerable, so prolonged misuse can set the stage for long-term liver disease. While alcohol can affect many body systems, the liver’s role in processing alcohol makes it the primary target of chronic misuse. The spleen, thyroid, and lungs aren’t the organs predominantly damaged by long-term alcohol use in the same direct, characteristic way.

Long-term, heavy alcohol use during adolescence and young adulthood mainly harms the liver because the liver is the body’s central organ for metabolizing alcohol. When alcohol is consumed, enzymes convert it into acetaldehyde and then to other metabolites, a process that changes the cell’s balance of NADH and NAD+. This shift promotes fat buildup in liver cells (steatosis) and, with ongoing exposure, leads to inflammation and injury. Over time, continued damage can progress to alcoholic hepatitis and eventually fibrosis and cirrhosis, severely impairing liver function. The developing liver in teens and young adults is particularly vulnerable, so prolonged misuse can set the stage for long-term liver disease.

While alcohol can affect many body systems, the liver’s role in processing alcohol makes it the primary target of chronic misuse. The spleen, thyroid, and lungs aren’t the organs predominantly damaged by long-term alcohol use in the same direct, characteristic way.