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.
You've heard that they can sag with age, perpetuate the name of a regrettable ex, or reveal an embarrassing inability to spell. But tattoos may also impair the way we sweat, potentially causing the body to overheat if the tattoos cover a large area of the body.
Researchers at McMaster University have found distinct effects of adversity early in life in the genomes of men compared to women who were born extremely preterm.
With a little tweak of the color palette, University of Virginia School of Medicine researchers have made it easier for scientists to understand biological processes, track happenings inside individual cells, unravel the mysteries of disease and develop new treatments.
Researchers at Mount Sinai have proposed a groundbreaking new way to study the interaction between complex biological systems in the body and the environment.
A breakthrough study, led by researchers from the University of California, Irvine, results in the restoration of retinal and visual functions of mice models suffering from inherited retinal disease.
Personalized treatment options for patients with lung cancer have come a long way in the past two decades.
A new Alzheimer's study found that impaired blood flow in the brain is correlated with the buildup of tau tangles, a hallmark indicator of cognitive decline.
Sepsis is estimated to cause 11 million deaths every year in the world. Its treatment is based on the use of antibiotics and organ support measures, but many times it fails due to unsuccessful attempts at modulating the immune response.
In humans, large arteries lose elasticity and thicken with age and other pathological conditions, leading to arteriosclerosis and high blood pressure.
The National Institutes of Health has awarded a team of researchers, led by the University of California, Irvine's Xiangmin Xu, PhD, a five-year, $3 million grant for a project titled, "Single-Cell Analysis of Aging-Associated 4D Nucleome in the Human Hippocampus."
Regular cannabis exposure in rats during pregnancy may cause their offspring to have long-term cognitive deficiencies, asocial behavior, and anxiety later in adulthood.
Scientists from Russia and Switzerland have probed into nanostructures covering the corneas of the eyes of small fruit flies. Investigating them the team learned how to produce the safe biodegradable nanocoating with antimicrobial, anti-reflective, and self-cleaning properties in a cost-effective and eco-friendly way.
In first-of-their-kind observations in the human brain, an international team of researchers has revealed two well-known neurochemicals -; dopamine and serotonin -; are at work at sub-second speeds to shape how people perceive the world and take action based on their perception.
Scientists at Wake Forest School of Medicine have recorded real time changes in dopamine and serotonin levels in the human brain that are involved with perception and decision-making.
With a nearly $2.6 million grant from the National Institutes of Health, Michigan State University researchers are using nanoscopic particles to turn the body's own cells into weapons that cancer won't see coming.
Human spaceflight has been fascinating man for centuries, representing the intangible need to explore the unknown, challenge new frontiers, advance technology and push scientific boundaries further.
Researchers might be able to treat a troublesome cough in disease without disrupting the protective cough we need for optimal lung health, by targeting the different brain circuits involved. That's according to new research published this week in The Journal of Physiology.
N-acetylglucosamine, a simple sugar found in human breast milk and sold as an over-the-counter dietary supplement in the United States, promotes myelin repair in mouse models and correlates with myelination levels in multiple sclerosis patients according to a new University of California, Irvine-led study.
A novel study shows that facemask use does not affect indicators of cognitive performance when the wearers are resting or performing moderate physical work in hot environments.
Since the outset of the COVID-19 pandemic, there has been much debate about the danger to hospital staff from anaesthetic procedures. Concerns include that placing a tube in the patient's airway (intubation) before surgery or removing it at the end (extubation) may produce a fine mist of small particles (called aerosols) and spread the COVID-19 virus to nearby staff.