Final answer:
Prevention in health refers to actions aimed at avoiding negative health outcomes, including diseases or injuries, through measures like vaccination, healthy lifestyle choices, and regular health check-ups.
Step-by-step explanation:
The term prevention refers to actions or strategies that are intended to stop something undesirable from happening, particularly in the context of health. In health, prevention usually focuses on taking steps to avoid negative health outcomes, such as diseases or injuries. This includes a broad range of activities and interventions, from vaccination to prevent infectious diseases to lifestyle changes like healthy eating and regular exercise to avoid chronic conditions like obesity or diabetes. Measures such as regular health screenings and check-ups fall under preventive healthcare, aiming to identify and address potential health issues before they become serious problems.