Meaning: 'Prevalent' means widely existing or commonly accepted, indicating that video gaming is a major aspect of contemporary culture.

Wrong options:

• visible: Visible means able to be seen, which does not convey the idea of being widespread or common in culture.
• selective: Selective implies a choice or preference, which does not fit the context of gaming being a common activity.
• targeted: Targeted suggests a focus on a specific group or goal, which does not align with the general nature of gaming in modern culture.

Correct answer: impairment

Explanation: The term 'impairment' is appropriate as it refers to a reduction in quality or function, which fits the context of negative effects on various areas of life due to gaming. It aligns with the plural structure of 'patterns' and the overall negative sentiment of the sentence.

Meaning: 'Impairment' refers to a state of being diminished or weakened, particularly in terms of function or ability, indicating adverse effects from gaming.

Wrong options:

• traits: Traits refer to characteristics or qualities, which do not convey the idea of negative impact or reduction in functioning.
• increase: Increase implies a growth or rise, which contradicts the context of negative outcomes associated with gaming patterns.
• improvements: Improvements suggest positive changes, which is the opposite of what is being described regarding the effects of gaming.

Correct answer: alert

Explanation: The word 'alert' is suitable as it indicates being aware and attentive, which is necessary for gamers to monitor their gaming habits. It fits grammatically and contextually, as it calls for awareness regarding time spent on gaming.

Meaning: 'Alert' means being watchful or aware, suggesting that gamers should pay attention to their gaming time and its effects.

Wrong options:

• necessary: Necessary implies something that is required, which does not convey the idea of being aware or attentive to one's actions.
• dedicated: Dedicated suggests commitment or devotion, which does not fit the context of being aware of gaming time.
• related: Related means connected or associated, which does not convey the need for awareness about gaming habits.

Correct answer: attributed

Explanation: The term 'attributed' is fitting as it indicates that something is regarded as being caused by something else, which aligns with the context of linking changes in health to gaming behavior. It fits grammatically with the passive construction of the sentence.

Meaning: 'Attributed' means to regard something as being caused by someone or something, indicating that health changes may be linked to gaming patterns.

Wrong options:

• assaulted: Assaulted means to be attacked, which does not fit the context of discussing health changes related to gaming.
• instituted: Instituted means to establish or set up, which does not relate to the idea of linking causes to effects in health.
• electrocuted: Electrocuted refers to being injured or killed by electric shock, which is irrelevant and does not fit the context of the sentence.