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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.
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Featured content, May 26, 2020

Questions About COVID-19 Answered
The COVID-19 pandemic has upended the lives of billions of people worldwide. Questions about the disease and about pandemics…
Companion / Health & Medicine
Coronavirus - Disinfection workers wearing masks spray anti-septic solution at the Incheon International Airport on January 27, 2020 in Incheon, South Korea. COVID-19 Epidemic pandemic
Zika at the Rio Olympics: Is the Risk Real?
As many as 500,000 visitors will flood Rio de Janeiro for the 2016 Olympic Games. What is their risk of contracting Zika?
Spotlight / Health & Medicine
Samples of Aedes aegypti mosquitoes, responsible for transmitting dengue and Zika, sit in a petri dish
9 Fun Facts About Sleep
While you sleep, your body goes to work, restoring itself and gathering energy for a new day.
List / Health & Medicine
sleep. reproductive system. One day old human baby sleeping in a hospital. Newborn, dreaming, infant, napping
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
Why Do We Have Earwax?
Does the gross and sticky substance have a purpose?
Demystified / Health & Medicine
Human ear closeup
Antibiotic resistance
Antibiotic resistance, loss of susceptibility of bacteria to the killing (bacteriocidal) or growth-inhibiting (bacteriostatic)…
Encyclopedia / Health & Medicine
Structure of a typical bacterial cell, showing the cell wall, a plasmid, and other components that are susceptible to modifications contributing to the development of antibiotic resistance.
Digestive system disease
Digestive system disease, any of the diseases that affect the human digestive tract. Such disorders may affect the esophagus,…
Encyclopedia / Health & Medicine
Hookworm (Ancylostoma).
Childhood disease and disorder
Childhood disease and disorder, any illness, impairment, or abnormal condition that affects primarily infants and children—i.e.,…
Encyclopedia / Health & Medicine
birth: premature

Health & Medicine Quizzes

blood. Close-up of a technician drawing human blood with syringe from blood bag at a blood bank. Blood donation, Healthcare and medicine, needle
Blood: Fact or Fiction?
This specialized fluid enlivens the human body, but how much do you really know about blood? From blood cells to blood types,…
Adult Caucasian woman with hand on her face as if in pain. lockjaw, toothache, healthcare and medicine, human jaw bone, female
Viruses, Bacteria, and Diseases
If a person has lockjaw, what disease is he or she suffering from? From poliomyelitis to influenza, learn more about viruses,…
Hand washing. Healthcare worker washing hands in hospital sink under running water. contagious diseases wash hands, handwashing hygiene, virus, human health
Human Health
What is the most prevalent noncontagious disease in the world? What is "King Tut’s Curse?" Learn more about human health…
Superficial arteries and veins of face and scalp, cardiovascular system, human anatomy, (Netter replacement project - SSC)
The Human Body
You may know that the human brain is composed of two halves, but what fraction of the human body is made up of blood? Test…
Muscles of facial expression, human anatomy, (Netter replacement project - SSC). Human face, human head.
Characteristics of the Human Body
How many facial muscles are involved in speaking? How much blood is in the human body? From sweat glands to taste buds, learn…
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.
Image Gallery
Health & Medicine
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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
A light gray peppered moth (Biston betularia) and a darkly pigmented variant rest near each other on the trunk of a soot-covered oak tree. Against this background, the light gray moth is more easily noticed than the darker variant. 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, 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
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