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.
An appetite-suppressing chemical also improves glucose tolerance and lowers insulin levels in obese and diabetic mice, researchers report in the November issue of Cell Metabolism, a publication of Cell Press.
Our body's 24-hour internal clock, or circadian clock, regulates the time we go to sleep, wake up and become hungry as well as the daily rhythms of many metabolic functions.
An appetite-suppressing chemical also improves glucose tolerance and lowers insulin levels in obese and diabetic mice, researchers report in the November issue of Cell Metabolism, a publication of Cell Press.
Individual brain chemistry and genes could be key to understanding why some people become addicted to nicotine and why the chemical compound's effects appear to diminish at night, University of Colorado at Boulder researchers say.
The University of Mississippi Medical Center has been selected as one of 22 study centers nationwide by the National Children's Study (NCS), the largest study of child and human health ever conducted in the United States, to assess the effects of environmental and genetic factors on child and human health in the country.
Pancreatic cancer patients face the worst survival rates compared to all other forms of human cancer as the disease is nearly impossible to diagnose at an early stage when successful treatments might be possible.
The answer for Tibetans who live at altitudes around 14,000 feet is increased nitric oxide (NO) levels. High levels of NO circulate in various forms in the blood and produce the physiological mechanisms that cause the increased blood flow that maintains oxygen delivery despite hypoxia - low levels of oxygen in the ambient air and the bloodstream.
Fever is an effective defence against disease, but new research suggests that not all animals use it when exposed to infection.
Researchers at UCLA have determined the brain circuits involved in hunger that are influenced by a hormone called leptin.
The study involved researchers growing fruits and vegetables on a 725 acre area where fields were split into two so that conventional and organic produce could be grown side by side.
The formation of a cancer is proven to be a multi-stage, multi-mechanism process by animal and human studies.
More than half of all drugs given to patients work by targeting a particular type of "docking station," or receptor, found on body cells, to steer the cell's machinery toward healing an illness.
It used to be dogma that the brain was shut away from the actions of the immune system, shielded from the outside forces of nature.
The first quantitative study of protein complexes that transmit pheromone signals in living yeast cells sheds light on a crucial signalling process also found in humans.
In spring 2005 a large European research and training network was established to investigate the causes and implications of poor sleep from a medical as well as from a social point of view. This EU-financed sleep research project, “The biomedical and sociological effects of sleep restriction”, is coordinated by Dr. Tarja Porkka-Heiskanen (Stenberg) MD, PhD, at the University of Helsinki, Institute of Biomedicine.
Scientists at the MRC Laboratory of Molecular Biology (LMB) in Cambridge have obtained the first clear images of the proteins that relay vital messages to cells.
Scientists believe they have found an explanation for a puzzling and serious complication of West Nile virus infection.
When faced with adversity, some people succumb to debilitating psychological diseases including posttraumatic stress disorder and depression, while others are able to remain remarkably optimistic.
Insulin, long known as an important regulator of blood glucose levels, now has a newly appreciated role in the brain.
Genes responsible for our 24 hour body clock influence not only the timing of sleep, but also appear to be central to the actual restorative process of sleep, according to research published in the online open access journal BMC Neuroscience.
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