Prevalence of health problems

IB Psychology: Prevalence of health problems

Why do health behaviours change over time? When we discuss how common a problem is, we refer to its prevalence. Prevalence signifies what proportion of a certain population engages in a certain behavior. As speaking about prevalence generally would be too broad of a topic, we will concentrate on the prevalence of smoking and obesity because both are commonly studied health problems. For instance, current prevalence...

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