Health care is the maintenance or improvement of a person's physical and mental well-being through the prevention, diagnosis, treatment, and management of illness, injury, and other health-related issues. It includes a wide range of services provided by medical professionals, hospitals, clinics, and other healthcare facilities to help individuals maintain their health and address any medical concerns they may have. Health care also encompasses preventive measures such as vaccinations, screenings, and lifestyle counseling to promote overall wellness and prevent the onset of diseases.