Health & Medicine

The study of the human mind and body, how these function, and how they interact—not only with each other but also with their environment—has been of utmost importance in ensuring human well-being. Research on potential treatments and preventive medicine has expanded greatly with the development of modern medicine, and a network of disciplines, including such fields as genetics, psychology, and nutrition, aims to facilitate the betterment of our health.
Browse Subcategories

Featured content, January 02, 2021

What is Hexavalent Chromium (or Chromium-6)?
The movie Erin Brockovich (2000) brought attention to the dangers of hexavalent chromium, but what is the chemical...
Demystified / Health & Medicine
Movie Still from the film Erin Brockovich starting Julia Roberts (2000). Directed by Steven Soderbergh
6 Exotic Diseases That Could Come to a Town Near You
Thanks to human travel and climate change, these scary sicknesses could be on their way.
List / Health & Medicine
Digitally-colorized transmission electron micrograph(TEM)of the West Nile virus (WNV). West Nile virus is a flavivirus commonly found in Africa, West Asia, and the Middle East. It is closely related to St. Louis encephalitis virus found in the United Stat
9 Bizarre Myths About Pregnancy
That’s one for each month!
#WTFact / Health & Medicine
Pregnancy. pregnancy and birth. Fertilization, Pregnancy, and Birth. Stages of nine month pregnant woman abdomen growth. Pregnant human female developing human within her. White pregnant female, developing fetus. mother
Is There a Cure for Coronavirus?
With COVID-19 continuing to spread worldwide, many people are wondering, is there a cure for coronavirus infection?
Companion / Health & Medicine
Illustration by the CDC, reveals ultrastructural morphology exhibited by coronaviruses. Note the spikes on the outer surface of the virus, which impart the look of a corona surrounding the virion, when viewed electron microscopically. A novel coronavirus,
Measles
Measles, contagious viral disease marked by fever, cough, conjunctivitis, and a characteristic rash. Measles is most common...
Encyclopedia / Health & Medicine
Chemoreception
Chemoreception, process by which organisms respond to chemical stimuli in their environments that depends primarily on the...
Encyclopedia / Health & Medicine
Chemoreception enables animals to respond to chemicals that can be tasted and smelled in their environments. Many of these chemicals affect behaviours such as food preference and defense.
Human ear
Human ear, organ of hearing and equilibrium that detects and analyzes sound by transduction (or the conversion of sound waves...
Encyclopedia / Health & Medicine
human ear
Dengue
Dengue, acute infectious mosquito-borne fever that is temporarily incapacitating but rarely fatal. Besides fever, the disease...
Encyclopedia / Health & Medicine
Aedes aegypti mosquito

Health & Medicine Quizzes

Encyclopaedia Britannica First Edition: Volume 1, Plate XIII, Figure 1, Anatomy, Of the Bones, A male skeleton showing major bone groups and joints
Human Bones: Fact or Fiction?
Is the smallest bone in the ear the malleus? From cartilage to calcium, test the strength of your bone knowledge in this...
pulmonary veins and arteries, circulation, cardiovascular system, human anatomy, (Netter replacement project - SSC)
Human Organs: Fact or Fiction?
Is it true that we only use ten percent of our brain? Is the retina the lens at the front of the eye? Dissect these questions...
abdominal organs in situ, abdominal cavity, digestive system, human anatomy
Your Body: Fact or Fiction?
Does insulin regulate the level of sugar in the body? Do humans have only five senses? Take an X-ray of your knowledge in...
E. coli bacteria close up. (false color)
Diabetes, Malaria, Arthritis: Fact or Fiction?
Can arthritis be cured? Is malaria always lethal? Perform a mental check-up in this quiz about human disease.
Galen of Pergamum, undated lithograph.
Doctor Who?
Do you know these famous doctors? Test your knowledge with this quiz.
Thoracotomy, chest, surgery.
Name That Surgery
Have you undergone a myringotomy? How about a lingual frenectomy? Test your knowledge of surgical procedures with this quiz.
Detail of skin with chicken pox, chickenpox, rash.
Diagnose This!
Think you know about symptoms of common illnesses? Test your knowledge with this quiz.
Woman lying on couch at doctors office, psychology
Psychology 101
Think you know your Freud, Pavlov, and Skinner? Test your knowledge of psychology with this Psychology 101 quiz!
MRI Image Of Head Showing Brain
The Human Brain
How much do you know about the human brain? Test your knowledge with this quiz.
magnetic resonance imaging (MRI). brain. brain scanning. A MRI of a human head back and side view. The MRI is a three-dimensional diagnostic imaging technique used to visualize inside the body without the need for X-rays or other radiation. Health care
Introduction to Psychology Quiz
Psychology is a scientific discipline that studies mental states and behavior in humans and other animals, according to
Image Gallery
Health & Medicine
Never Miss a Day in History
Sign up for daily fun facts about this day in history, updates, and special offers delivered right to your inbox.

Health & Medicine Subcategories

human body; human anatomy Anatomy & Physiology
Human beings have long been curious about the way that things work, and that curiosity includes wondering about how we ourselves work. The fields of anatomy and physiology involve studying the structures of bodies and the way that those structures and bodies function.
Articles
The Barr, or sex chromatin, body is an inactive X chromosome. It appears as a dense, dark-staining spot at the periphery of the nucleus of each somatic cell in the human female. Conditions & Diseases
Whether we like it or not, living things are susceptible to any number of illnesses and conditions that can threaten or harm the health of those afflicted. Bacteria, viruses, and other microbiological agents are obvious challenges to health. Human disease may be acute, chronic, malignant, or benign, and it is usually indicated by signs and symptoms such as fever or vomiting. Additionally, diseases may be communicable (contagious) or noncommunicable; of the latter, the four major types identified by the World Health Organization are cancer, cardiovascular disease, chronic respiratory disease, and diabetes mellitus.
Articles
light gray peppered moth (Biston betularia) Genetics & Evolution
The plants and animals that are so familiar to us here on Earth today may have been harder to spot millions of years ago. The theory of evolution, one of the keystones of modern biological theory, is based on the idea that living things on Earth can be traced back to other preexisting types and that the differences are due to modifications that occurred over successive generations. Genetics, an essential part of the study of evolution, looks at the inheritance of characteristics by children from their parents. It can help explain how you got your mom's green eyes or why your hair is red even though your parents are brunettes.
Articles
Vegetables are an important part of a balanced diet. Health, Nutrition & Fitness
Health isn't just about being able to impress people at the gym with your weight-lifting prowess. Physical fitness, the body's ability to function properly, and the absence of disease are important factors in determining health, as is one's emotional, mental, and social state. In addition, nutrition provides the energy that fuels all physical and mental activities, including the aforementioned displays of weight-lifting mastery.
Articles
subcategory placeholder Human Development
Even if you feel like a kid at heart, you probably still went through (or are currently undergoing) the typical process of change and growth that takes place between human infancy and maturity. After birth, human beings undergo infant and toddler development, moving on to child development before progressing to puberty and adolescence on the way to adulthood. Human growth involves not only biological development—the progressive changes in size, shape, and function during the life of an organism—but also emotional and psychological development.
Articles
laparoscopy Medicine
From prehistoric times onward, humans have sought to find cures for the ailments and injuries that befall them. This has led to a long history of diverse attempted treatments, including herbal remedies, leeching, hydrotherapy, acupuncture, 数字货币杠杆交易_数字货币周homeopathy, and more, all the way up to the most recent treatments that have come into use during the development of today's modern medicine. Medical research and the study of the causes of disease (pathology) have led to rapid and significant advances in medicine, improving both the efficacy of treatments and our understanding of illnesses and how they operate. The importance of preventive medicine has grown, and the field of medicine has become increasingly specialized as medical disciplines and branches such as endocrinology, immunology, psychiatry, radiology, epidemiology, and nanomedicine have emerged.
Articles
subcategory placeholder Psychology & Mental Health
Although Sigmund Freud was once one of the most recognizable faces of psychology, this scientific discipline has developed significantly since the time of his predominance. Psychology has become an increasingly integrative science at the hub of diverse other disciplines, from biology and neurology to sociology, anthropology, and economics. At the same time, old sub-disciplinary boundaries within pyschology itself are now crossed more freely; interdisciplinary teams may work on a common problem using methods that draw on multiple levels of analysis, whether social, cognitive, or biological.
Articles
Ring in the new year with a Britannica Membership - Now 30% off.
Learn More!