What young adult behavior would have the least positive impact on one's cognitive reserve in adulthood?

Question

Quizplus · Accepted Answer

Cutting back on using one's mental skills to solve nonessential problems would have the least positive impact on one's cognitive reserve in adulthood. Engaging in activities that challenge the brain, such as obtaining a PhD or being active in social organizations, can enhance cognitive reserve. However, reducing mental stimulation and problem-solving can lead to cognitive decline over time. While being a marathon runner may have physical benefits, it does not necessarily have a direct impact on cognitive reserve.

What Young Adult Behavior Would Have the Least Positive Impact