<span id="prl1l"></span><span id="prl1l"><dl id="prl1l"></dl></span>
<span id="prl1l"><dl id="prl1l"><ruby id="prl1l"></ruby></dl></span>
<span id="prl1l"></span>
<span id="prl1l"><video id="prl1l"><ruby id="prl1l"></ruby></video></span>
<span id="prl1l"><video id="prl1l"><strike id="prl1l"></strike></video></span>
<span id="prl1l"></span>
<ruby id="prl1l"><dl id="prl1l"><del id="prl1l"></del></dl></ruby><strike id="prl1l"></strike>
<strike id="prl1l"></strike><strike id="prl1l"><i id="prl1l"></i></strike>
<span id="prl1l"><dl id="prl1l"><ruby id="prl1l"></ruby></dl></span><strike id="prl1l"><i id="prl1l"><cite id="prl1l"></cite></i></strike>
<strike id="prl1l"><dl id="prl1l"></dl></strike>
<th id="prl1l"></th>
<strike id="prl1l"><i id="prl1l"><del id="prl1l"></del></i></strike><span id="prl1l"></span>
You are using an outdated browser. Please upgrade your browser to improve your experience and security.

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, April 12, 2021

Can You Really Sweat Out Toxins?
Maybe you should turn down the heat.
Demystified / Health & Medicine
Young sportswoman resting after running, sweat
7 Drugs that Changed the World
Only a small number of substances can be said to have fundamentally revolutionized medicine.
List / Health & Medicine
Aspirin pills.
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
Investigating Therapeutic Uses for Hallucinogens
After a pause of several decades, scientists have resumed investigating how hallucinogens could be used to treat a variety...
Companion / Health & Medicine
Man and woman with substance induced mental disorder or psychosis, hallucination, hallucinogens, lsd, drugs
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
Death
Death, the total cessation of life processes that eventually occurs in all living organisms. The state of human death has...
Encyclopedia / Health & Medicine
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
Drug use
Drug use, use of drugs for psychotropic rather than medical purposes. Among the most common psychotropic drugs are opiates...
Encyclopedia / Health & Medicine
cocaine

Health & Medicine Quizzes

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
3d illustration human heart. Adult Anatomy Aorta Black Blood Vessel Cardiovascular System Coronary Artery Coronary Sinus Front View Glowing Human Artery Human Heart Human Internal Organ Medical X-ray Myocardium
Medical Terms and Pioneers Quiz
Who discovered the major blood groups? What causes the blood disease thalassemia? Test what you know about medical science...
Hand washing. Healthcare worker washing hands in hospital sink under running water. contagious diseases wash hands, handwashing hygiene, virus, human health
Medical Conditions and Discoveries Quiz
What does thrombosis refer to? Who discovered that bacteria must never gain entry to an operation wound? Find out what you...
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

right cerebral hemisphere of the human brain 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
Alzheimer disease 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
subcategory placeholder 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
polio vaccine 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
babies 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
The practice of dentistry involves preventing, diagnosing, and treating oral disease, as well as correcting deformities of the jaws, teeth, and oral cavity. 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
Sigmund Freud 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
Grab a copy of our NEW encyclopedia for Kids!
Learn More!
5566免费精品在线观看