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.
A new study dispels the age old belief that sleep doesn’t get more difficult with age. The study shows that sleep quality tends to improve the older people got, with adults in their 80s getting better sleep than any other age group surveyed. The new study was published in the journal Sleep.
Four leading heart organizations representing cardiologists and cardiothoracic surgeons released initial recommendations today for creating and maintaining transcatheter aortic valve replacement (TAVR) programs.
Experts say at least $20 million to $30 million in government research is needed over the next decade to adequately identify and address the possible ecological risks of synthetic biology, an emerging area of research focused on the design and construction of new biological parts and systems, or modification of existing ones, to create new applications in areas ranging from energy to chemicals and pharmaceuticals.
It's one of life's special moments: a child finds a fat caterpillar, puts it in a jar with a twig and a few leaves, and awakens one day to find the caterpillar has disappeared and an elegant but apparently lifeless case now hangs from the twig.
Federal laws that motivate or require drug and biologic developers to conduct pediatric studies have yielded beneficial information to guide the use of medications in children, says a new report by the Institute of Medicine. Still, studies involving children continue to be limited, especially in certain areas such as medications' use in newborns and long-term safety and effectiveness in children.
A team of researchers at the MedUni Vienna, together with scientists from the University Hospital of Freiburg, has decoded a mechanism in cyclic plant peptides, known as cyclotides, from the family of coffee plants (Rubiaceae) that could open up new possibilities for immune suppression.
Adding prebiotic ingredients to infant formula helps colonize the newborn's gut with a stable population of beneficial bacteria, and probiotics enhance immunity in formula-fed infants, two University of Illinois studies report.
People with heart disease may not be able to compensate for their bodies' higher demand for oxygen when inhaling cold air, according to Penn State researchers, making snow shoveling and other activities dangerous for some.
A tiny molecule might help protect the pancreas from deadly disease and cancer. Tackling a mysterious process: There is a feeling that neglected cancers need more research and Pancreatic cancer is one of the least studied. Today, the survival rate is 3% for five years. Professor Petersen, at the School of Biosciences at Cardiff University, hopes his team's research can change that.
Researchers from The University of Nottingham have demonstrated how a species of flatworm overcomes the ageing process to be potentially immortal.
Asia will receive a boost in the field of complexity science through a dedicated programme by Nanyang Technological University (NTU).
Pediatric cardiology researchers and clinicians from almost 50 centers from across the U.S. and around the world are gathering at the Cardiology 2012 Conference sponsored by The Children's Hospital of Philadelphia on Feb. 22-26 in Orlando, Fla.
Wiley-Blackwell, the scientific, technical, medical and scholarly publishing business of John Wiley & Sons, Inc., has launched two new interdisciplinary review publications: WIREs Developmental Biology and WIREs Membrane Transport and Signaling.
A study from Karolinska Institutet in Sweden shows that a new drug for Huntington's disease - pridopidine or dopamine stabiliser ACR16 - might operate via previously unknown mechanisms of action. Researchers have found that at very low concentrations, ACR16 binds to the sigma-1 receptor, a protein in the brain important to neuronal function and survival.
Researchers have combined bioactive peptides to successfully stimulate wound healing. The in vitro and in vivo study, published today in PLoS ONE, demonstrates that the combination of two peptides stimulates the growth of blood vessels and promotes re-growth of tissue. Further development of these peptides could lead to a new treatment for chronic and acute wounds.
Cigarette smoke has long been considered the main risk factor for heart disease. But new research from Brown University in Providence, R.I., shows that nicotine itself, a component of cigarette smoke, can contribute to the disease process by changing cell structure in a way that promotes migration and invasion of the smooth muscle cells that line blood vessels.
Sudden cardiac death is a risk for patients with heart failure because the calcium inside their heart cells is not properly controlled and this can lead to an irregular heartbeat. New findings published in PLoS ONE, which reveal mechanisms that underlie this life-threatening risk, provide new possibilities for fighting it.
All referees feel stress on match days. However, contrary to what you might believe, a joint study by the Catholic University of Brasilia, A Coru-a University and James Cook University in Australia state that the level of stress is not linked to the physical condition of these referees, but to their nervous system. The researchers measured the activity of Spanish football referees on a normal day and on a match day.
The ability to anticipate future events allows us to plan and exert control over our lives, but it may also contribute to stress-related increased risk for the diseases of aging, according to a study by UCSF researchers.
A gene known to control lens development in mice and humans is also crucial for the development of neurons responsible for mechanosensory function, as neurobiologists of the Max Delbr-ck Center for Molecular Medicine (MDC) Berlin-Buch have now discovered.
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