Healthcare is the maintenance or improvement of a person's health by the diagnosis and treatment of a person's injury, illness, or any other disease. Healthcare is a basic necessity of human life and is the responsibility of the country's government to ensure that each person gets healthcare. Providing healthcare is the job of certified health professionals that includes doctors, surgeons, nurses, and other physicians. Pharmaceutical companies, hospitals, dentistry, therapy, and health training all come under healthcare. Healthcare plays a vital role in the country's economy and its development.