Final answer:
Preventative health services are usually covered under a health insurance policy because they help promote overall wellness and can save money in the long run by preventing the need for more expensive treatments.
Step-by-step explanation:
Preventative health services are usually covered under a health insurance policy. These services are intended to prevent or detect illness or disease before they become serious or advanced. Examples of preventative services include vaccinations, screenings, and annual check-ups. Health insurance plans typically cover these services because they help promote overall wellness and can save money in the long run by preventing the need for more expensive treatments.