“This rise in obesity is due to poor diet and lack of exercise.”

You're writing a blog post about how you think America should solve the problem of having too many overweight people. You just wrote that obesity has increased over the last 20 years. Now you want to explain why you think the number of fat people has increased You write:

This rise in obesity is due to poor diet and lack of exercise.

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“Over one in five Americans suffer from obesity.”

You're writing a blog post about how you think America should solve the problem of having too many overweight people. You're introducing the topic. You write:

Over one in five Americans suffer from obesity.

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