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.
It certainly makes sense: COPD sufferers have varying degrees of serious breathing difficulties, which keeps them from almost any kind of exercise, especially in advanced stages. So maybe “lighter than air” air would be easier to breath, reduce shortness of breath and perhaps even allow them to do some exercise with all of its physical and mental benefits.
A new Canada Research Chair (CRC) at The University of Western Ontario is studying the relationship between fetal health during pregnancy and later development of the brain.
It has been estimated that up to 32 million Americans have adopted the low-carb style of eating, in part because of its quick and dramatic results. Converts often maintain components of low-carb eating long after they’ve officially finished dieting.
Noted vascular surgeon Frank Veith, M.D., the William J. von Liebig Chair for Vascular Surgery, Montefiore Medical Center (Bronx, NY) and Professor of Surgery, Albert Einstein College of Medicine (Bronx ,NY) is the recipient of the first Julius H. Jacobson II, M.D. Award for Physician Excellence, given by the Vascular Disease Foundation.
Long an under-studied yet widely-used over-the-counter medication, acetaminophen over the last few years is becoming recognized for a range of potential therapeutic uses beyond headache and pain.
The search for a stable, renewable source of blood vessels, especially for potential use in heart bypass surgery, has reached a milestone at the State University of New York at Buffalo.
In what could be termed a truly seminal discovery, researchers have shown that when females are more promiscuous, males have to work harder -- at the genetic level, that is. More specifically, they determined that a protein controlling semen viscosity evolves more rapidly in primate species with promiscuous females than in monogamous species.
Researchers using extremely high resolution imaging have found an atomic switch capable of discriminating color in a bacterial membrane protein.
Researchers at UT Southwestern Medical Center at Dallas have identified a protein that transports the essential nutrient boron into cells, where it is important for cell growth and bone development. The findings are in the Nov. 5 edition of the journal Molecular Cell and are online.
Our ancestors had two nostrils, one front and one back, but no opening on the palate or in the throat. They could smell, but not breathe with their nose. How did our nose evolve?
Overturning a scientific stereotype, researchers at the University of Illinois at Chicago have discovered a new role for a key protein involved in muscle contraction and shown it is present not just in the cytoplasm of cells but in the nucleus as well.
Researchers at The Hospital for Sick Children (Sick Kids) have shown that stem cells found in adult skin retain their embryonic capability of making many types of cells.
A team led by Dr Dave Bates, British Heart Foundation Lecturer, and Dr Steve Harper, Senior Research Fellow in the Microvascular Research Laboratories, in the Department of Physiology at Bristol University, have discovered that a type of vascular endothelial growth factor (VEGF) found in normal tissue, including blood, can prevent cancers from growing.
Homing in on mechanisms for the reported effectiveness of resveratrol, which is found in red wine, researchers at Imperial College London, England, confirmed its broad anti-inflammatory action, and found potential for applications in chronic obstructive pulmonary disease (COPD), asthma, and possibly even arthritis.
Impaired endothelial function is an early indicator of atherosclerosis according to a study of healthy people followed from childhood to young adulthood reported in Circulation: Journal of the American Heart Association.
The mystery surrounding sex determination of the unique Australian platypus has yielded a surprising secret: it has 10 sex chromosomes.
The protein's ability to enhance tumor development suggests that the gene that codes for LRP6 is an oncogene--a gene that contributes to tumor development when overactivated.
For many patients with advanced Parkinson’s disease, deep brain stimulation can mean the difference between having difficulty walking and being able to run.
Scientific description of the finished human genome sequence, reducing the estimated number of human protein-coding genes from 35,000 to only 20,000-25,000, a surprisingly low number for our species.
Each year 80,000 - 100,000 people in the U.S die suddenly from heart attacks without ever having had any symptoms of heart disease. In some cases, the victims of these unheralded sudden cardiac deaths had been taking dietary supplements containing ephedrine.