Medicine is the science of healing. Practitioners diagnose, treat, and work to prevent diseases of all types in people. Early medicine began with prehistoric people who believed that supernatural powers caused diseases. These early people used techniques such as drilling holes in a patient's head to release the evil spirits. The first doctors, known as medicine men, turned to herbal concoctions, ritual dances, and incantations to heal their patients. Ancient Egyptians introduced the idea of specialization within the field of medicine and developed systematic methods for treating illnesses. Hippocrates, a Greek physician, was first to determine that natural forces cause diseases. He introduced a method of conduct and ethics for the practice of medicine. Today, physicians still recite the Hippocratic Oath upon graduating from medical school.
From early medical practices, health care has evolved and continues to develop rapidly with the discoveries of new drugs, treatments, and cures. Modern technologies, such as computers and virtual reality, are used by the medical community to perform tests, compile data, diagnose illnesses, and train professionals. Many surgeries are no longer performed with a scalpel, but with lasers. Disease, illness, and injury are now being treated and cured so successfully that the general population is living much longer and the number of elderly is increasing. The field of genetics is one area being researched by scientists with promising results.
The structure of the health care industry offers a wide variety of jobs to choose from and many different facilities in which to work, once the job is chosen. Health care providers are employed as physicians, nurses, nursing aides, technicians, technologists, therapists, and medical researchers, to name just a few. They are employed in settings that include private offices, hospitals, clinics, managed-care facilities, nursing homes, research facilities, and private homes.
Medical and health care has become one of the largest and most varied occupational areas in the United States. More than 18 million people were employed in some aspect of the U.S. health care system in 2017, according to the Centers for Disease Control. Employment in the health services industry is projected to increase by 14 percent through 2028, adding about 1.9 million new jobs, according to the Department of Labor. Employment opportunities are expected to be strong in the areas of gerontology, home health care, and nursing and residential care to meet the needs of America's aging population.
Equally strong employment opportunities will be available in nursing. As health care services expand, even more nurses will be needed. In May 2018, there were nearly 3.1 million registered nurses. Other health care professions with good employment opportunities are dental assistants and hygienists, cardiovascular technologists, emergency medical technicians, and respiratory therapists.
- Addiction Therapists
- Advanced Practice Nurses
- Aerospace Medicine Physicians
- Allergists/Immunologists
- Anesthesiologist Assistants
- Anesthesiologists
- Behavioral Health Technicians
- Biomedical Equipment Technicians
- Cancer Exercise Specialists
- Cardiologists
- Cardiovascular Technologists
- Child Life Specialists
- Chiropractors
- Clinical Applications Specialists
- Clinical Pharmacist Practitioners
- Community Health Nurses
- Community Health Workers
- Contact Tracers
- Cosmetic Surgeons
- Creative Arts Therapists
- Critical Care Nurses
- Cytogenetic Technologists
- Cytotechnologists
- Dental Assistants
- Dental Hygienists
- Dental Laboratory Technicians
- Dental Therapists
- Dentists
- Dermatologists
- Diagnostic Medical Sonographers
- Dialysis Technicians
- Dietetic Technicians
- Dietitians
- Directors of Telehealth
- Dispensing Opticians
- Ear, Nose, and Throat Specialists
- Electroneurodiagnostic Technologists
- Emergency Medical Technicians
- Emergency Nurses
- Endocrinologists
- Endodontists
- Endoscopy Technicians
- Epidemiologists
- Ergonomists
- Gastroenterologists
- General Practitioners
- Genetic Counselors
- Geriatric Nurses
- Geriatric Psychiatrists
- Geriatric Social Workers
- Geriatricians
- Grief Therapists
- Health Advocates
- Health Educators
- Health Informaticists
- Hematologists
- Histologic Technicians
- Holistic Physicians
- Home Health Care Aides
- Home Health Care and Hospice Nurses
- Hospice Workers
- Hospitalists
- Industrial-Organizational Psychologists
- Informatics Nurse Specialists
- Kinesiologists
- Licensed Practical Nurses
- Medical Assistants
- Medical Laboratory Technicians
- Medical Screeners
- Medical Scribes
- Medical Technologists
- Microbiologists
- Music Therapists
- Neonatal Nurses
- Neurologists
- Neuropsychologists and Clinical Neuropsychologists
- Neuroscientists
- Nuclear Medicine Physicians
- Nuclear Medicine Technologists
- Nurse Anesthetists
- Nurse Assistants
- Nurse Managers
- Nurse Practitioners
- Nurse-Midwives
- Nutritionists
- Obstetricians/Gynecologists
- Occupational Health Nurses
- Occupational Therapists
- Occupational Therapy Assistants and Aides
- Oncological Nurses
- Oncologists
- Ophthalmic Laboratory Technicians
- Ophthalmic Medical Technologists
- Ophthalmologists
- Optometrists
- Oriental Medicine Practitioners
- Orientation and Mobility Specialists
- Orthodontists
- Orthoptists
- Orthotic and Prosthetic Technicians
- Orthotists and Prosthetists
- Osteopathic Physicians
- Pathologists
- Pediatricians
- Pedorthists
- Perfusionists
- Periodontists
- Pharmacists
- Pharmacologists
- Pharmacy Technicians
- Phlebotomy Technicians
- Physiatrists
- Physical Therapists
- Physical Therapy Assistants
- Physician Assistants
- Physicians
- Podiatrists
- Preventive Medicine Physicians
- Prosthodontists
- Psychiatric Nurses
- Psychiatric Technicians
- Psychiatrists
- Psychologists
- Radiologic Technologists
- Radiologists
- Recreational Therapists
- Registered Nurses
- Remote Health Care Engineers
- Respiratory Technicians
- Respiratory Therapists
- School Nurses
- Senior Care Pharmacists
- Social Workers
- Special Procedures Technologists
- Speech-Language Pathologists and Audiologists
- Speech-Language Pathology Assistants
- Sports Physicians
- Sports Psychologists
- Surgeons
- Surgical Technologists
- Toxicologists
- Transplant Coordinators
- Urologists