Prevention incorporates an extensive range of activities aimed at the reduction of threats or risks to health. Primary prevention focuses on preventing injury or disease before it ever happens. Examples of this strategy are enforcement and legislation to control or ban the employment of hazardous products (for instance asbestos) or to authorize healthy and safe practices (for instance, the use of bike helmets and seatbelts). Both examples prevent exposures to risks, which cause injury or disease, modifying unsafe or unhealthy behaviors, which can bring about injury or disease, and raise resistance to injury or disease should exposure take place (Nies & McEwen, 2015).

Secondary prevention focuses on reducing the effect of an injury or disease, which has already occurred. Examples of this strategy include regular screening and examination to diagnose disease in its initial stages, for instance, mammography to diagnose breast cancer). Another example is a low-dose administration of aspirins daily or exercise and diet programs to avoid further strokes. The two examples detect and treat disease immediately possible to stop or slow the disease progress, encourage individual strategies to stop a recurrence, and implement programs to return them to original health status and work to prevent long-standing problems (Nies & McEwen, 2015).

Tertiary prevention aims at softening the effects of a current sickness or injury, which has lasting impacts. Examples of tertiary strategy is………

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