What are some physical consequences of narcotic abuse?

Narcotic abuse is associated with a range of serious physical consequences, and the correct option reflects these potential health risks. When narcotics are misused, they can cause significant fluctuations in bodily functions. Increased heart rate, strokes, and anxiety are all notable effects.

Specifically, narcotics can depress the central nervous system, leading to an initial calming effect; however, this can paradoxically result in an increased heart rate due to the body's compensatory mechanisms. Prolonged abuse can lead to severe cardiovascular issues, including the risk of stroke. Additionally, withdrawal symptoms from narcotics can cause heightened anxiety, making this a relevant consequence of their abuse.

In contrast, the other options reflect effects that are not commonly associated with narcotic abuse. For instance, weight gain is not a typical consequence; instead, many users may experience decreased appetite and weight loss. Improved metabolism and enhanced cognitive function also do not align with the effects of narcotics, which generally impair cognitive abilities and can lead to a slowing of metabolic processes due to their sedative nature.