Final answer:
Alcohol exacerbates hypoxia by reducing the oxygen supply to the brain, impairing respiratory and circulatory function.
Step-by-step explanation:
b) Alcohol exacerbates hypoxia.
Alcohol consumption can worsen the effects of hypoxia on the brain. Hypoxia is a condition where there is a decrease in the oxygen supply to the brain. When alcohol is consumed, it can further reduce the amount of oxygen that reaches the brain, leading to increased hypoxia. This can have detrimental effects on brain function and overall health.
For example, alcohol can impair the function of the respiratory system and decrease lung function, reducing the amount of oxygen that can be taken in by the body. Additionally, alcohol can impair the circulatory system, leading to decreased blood flow to the brain and further exacerbating hypoxia. This can result in symptoms such as dizziness, confusion, and impaired cognitive function.