Final answer:
The phrase 'be healthier and more active in the coming century' refers to a long-term effect in the context of health.
Step-by-step explanation:
The phrase 'be healthier and more active in the coming century' refers to a long-term effect. In the context of health, being healthier and more active is a goal that requires consistent effort and lifestyle changes over a prolonged period. Short-term effects typically occur within a shorter time frame, such as days or weeks, while long-term effects are seen over months, years, or even decades. Therefore, the effect described in the question aligns with a long-term goal of improving health and activity levels in the future.
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