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.
Featured content, December 26, 2022
How Does A Ventilator Work?
Mechanical ventilators have played an important, if controversial, role in the treatment of patients with severe COVID-19—helping...
MERS, acute viral respiratory illness that is characterized primarily by cough, fever, and shortness of breath and is sometimes...
Human disease, an impairment of the normal state of a human being that interrupts or modifies its vital functions. Before...
Antibiotic resistance, loss of susceptibility of bacteria to the killing (bacteriocidal) or growth-inhibiting (bacteriostatic)...
Death, the total cessation of life processes that eventually occurs in all living organisms. The state of human death has...
Health & Medicine Quizzes
The Skeletal Puzzle
About how many bones do newborn humans have? What is the smallest bone in the human body? From mandibles and teeth to phalanges...
The Human Body: Fact or Fiction?
Can people choose to be left or right-handed? From nerves and genes to muscles and organs, see how ambidextrous you are by...
Apples and Doctors: Fact or Fiction?
Can diabetes be brought on by a poor diet? Can viruses live outside of a host? Perform a mental check-up by taking this human...
Exploring Human Bones: Fact or Fiction?
How many bones do adult humans have? What causes the bone disease rickets? Bone up on your human skeleton knowledge by taking...
Human Health: Fact or Fiction?
How long can a human live without water? Does vitamin C really prevent the common cold? Sort fact from fiction--and science...
Human Body Fun Facts: Fact or Fiction?
Are certain people more accident-prone than others? Do firstborn children have higher IQ scores than their younger siblings?...
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,...
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,...
What is the most prevalent noncontagious disease in the world? What is "King Tut’s Curse?" Learn more about human health...
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? Learn...
Health & Medicine Videos
Health & Medicine
Health & Medicine Subcategories
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.
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.
Genetics & Evolution
The plants and animals that are so familiar to us 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.
- human evolution
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.
- public health
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.
Humans have long 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 science-based treatments that have come into use during the development of today's modern medicine. Medical research and the study of the causes of disease 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.
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.