Helthcare is the maintenance or improvement of health through the prevention, diagnosis, treatment, recovery or cure of diseases, illnesses, injuries and other physical and mental deficiencies in people. Health care is provided by health professionals in related areas. Doctors and associate doctors are part of these health professionals. Dentistry, pharmacy, obstetrics, nursing, medicine, optometry, speech therapy, psychology, occupational therapy, physiotherapy, athletic training and other health professions are part of health care. It includes the work carried out in the provision of primary, secondary and tertiary care, as well as in public health.