Human physiology is the science of the mechanical, physical, and biochemical functions of humans in good health, their organs, and the cells of which they are composed. The principal level of focus of physiology is at the level of organs and systems. Most aspects of human physiology are closely homologous to corresponding aspects of animal physiology, and animal experimentation has provided much of the foundation of physiological knowledge. Anatomy and physiology are closely related fields of study: anatomy, the study of form, and physiology, the study of function, are intrinsically tied and are studied in tandem as part of a medical curriculum.
With their brains, sleep patterns, and eyes still developing, children and adolescents are particularly vulnerable to the sleep-disrupting effects of screen time, according to a sweeping review of the literature published in the November issue of the journal Pediatrics.
Understanding the factors that control aging has been one of humanity's endless pursuits, from the mystical fountain of youth to practical healthful regimens to prolong life expectancy.
In 2012, about 28,000 new cases of cancer in men (3.5%) and 72,000 in women (9.5%) were due to overweight or obesity in the United States alone. There is an urgent need for research that focuses on the cancer-promoting effects of obesity as it's the leading preventable cause of cancer for women and the second for men.
Leading experts in the field of sickle cell disease (SCD) research will convene in Washington, D.C., for the Physiological and Pathophysiological Consequences of Sickle Cell Disease conference (November 6–8). The conference, organized by the American Physiological Society, will explore SCD- the world's most prevalent single-gene mutation disease - and new research on preventing and reversing its deadly consequences.
Your skeleton is much more than the structure supporting your muscles and other tissues. It produces hormones, too. And Mathieu Ferron knows a lot about it.
Stand Up To Cancer, joined by the Lustgarten Foundation for Pancreatic Cancer Research, LUNGevity, and the American Lung Association, announced today four teams of top researchers who will carry out an attack on cancers of the lung and pancreas using a radical new approach of “interception” of cancers at very early stages, when they can be more successfully treated.
The mechanism of how cells work is key to understanding how tumours metastasize as well as tissue regeneration and other bodily functions. The process of mechanotransduction, or how a cell converts a physical stimuli into an electrical response is fundamental to these understandings.
ACIST Medical Systems, Inc., a Bracco Group Company, today announced the global launch of its ACIST RXi Mini System, the next generation system of its RXi Rapid Exchange FFR System. The RXi Mini System will debut at the 29th Transcatheter Cardiovascular Therapeutics scientific symposium in Denver, Colorado.
Women account for half of all cases of high blood pressure (hypertension) in the U.S., yet the majority of hypertension research focuses on men.
Special Operations divers like Navy SEALs take on life-threatening risks such as enemy combatants and harsh environments. But another hazard is silent and unseen -- oxygen toxicity, the result of breathing lethal levels of oxygen that occur at depth and pressure.
Researchers at Texas Tech University Health Sciences Center investigated a pump-induced disease and defined the molecular mechanism that triggers it. The study, "On the effect of hyperaldosteronism-inducing mutations in Na/K pumps," was published in the October issue of the Journal of General Physiology.
Skin plays a surprising role in helping regulate blood pressure and heart rate, according to scientists at the University of Cambridge and the Karolinska Institute, Sweden. While this discovery was made in mice, the researchers believe it is likely to be true also in humans.
Degenerative disorders affecting the retinal pigment epithelium (RPE), such as age-related macular degeneration and autosomal recessive bestrophinopathy, can ultimately lead to blindness. Some of these life-changing disorders are the result of mutations in a single gene, called BEST1.
Picture a brand-new, unsharpened pencil. The graphite at its core can't be used for writing until a pencil sharpener chews away its wooden tip.
What role do genes play in egg, milk, and nut allergies? A study published in Nature Communications, led by the Max Delbrück Center for Molecular Medicine and Charité - Universitätsmedizin Berlin, has found five genetic risk loci that point to the importance of skin and mucous membrane barriers and the immune system in the development of food allergies.
A new British Journal of Dermatology study explores the relationship between seasonality and hair loss at a population level using Google Trends data. Across all eight countries analyzed in the study, summer and fall were associated with greater hair loss.
Many people associate the word "bacteria" with something dirty and disgusting. Dr. Pere Santamaria disagrees. Called the microbiome, the bacteria in our bodies have all kinds of positive effects on our health, Santamaria says. "The bacteria we have in our gut actually have many beneficial functions. They help in our digestion, prevent infection by pathogens and educate our immune system on what to fight."
A delayed neurological response to processing the written word could be an indicator that a patient with mild memory problems is at an increased risk of developing Alzheimer's disease, research led by the University of Birmingham has discovered.
A new study finds that late-stage type 1 diabetes mellitus (T1DM) weakens the autonomic reflex that regulates blood pressure during exercise, impairing circulation, nerve function and exercise tolerance. The study is published in the American Journal of Physiology - Heart and Circulatory Physiology.
Picture this: you're battling heart failure and meeting with your doctor to discuss treatment. Before prescribing anything, the doctor pulls up a virtual model of your heart on her computer and "treats" it with several drugs. A few moments later, she can see how your heart is doing five years down the road.
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