Fix grammar errors: Demographic changes such as a growing population will have a serious consequence on health issues in developed countries.
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The most important thing to remember is that the most important thing is to be aware of the fact that the most important thing is to be aware of the fact that the most important thing is to be aware of the fact that the most important thing is to be aware of the fact that the most important thing is to be aware of the fact that the most important thing is to be aware of the fact that the most important thing is to be aware of the fact that the most important thing is to be aware