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.
The Society of Nuclear Medicine and Molecular Imaging (SNMMI), American Society of Nuclear Cardiology (ASNC), European Association of Nuclear Medicine (EANM), and American College of Nuclear Medicine (ACNM) have issued a new clinical guideline for 18F-flurpiridaz PET myocardial perfusion imaging (MPI) and blood flow quantitation.
Simple resistance training may help counteract age-related nerve deterioration that puts seniors at risk of injuries from falls and other accidents, according to cross-institutional research led by Syracuse University postdoctoral researcher JoCarol Shields and Department of Exercise Science Professor Jason DeFreitas.
In a new study conducted at the University of Hawaiʻi at Mānoa, researchers from the John A. Burns School of Medicine (JABSOM) have shown that the loss of a key male fertility gene leads to infertility and changes expression of hundreds of other important genes.
When someone has a stroke - a leading worldwide cause of death and disability - time is of the essence. Almost nine out of 10 cases are ischemic strokes, caused by restricted blood flow in the brain, and the current gold-standard treatment that breaks up blood clots must be delivered within four and a half hours of symptoms appearing.
Early detection of even the slightest motor function changes can be critical to slowing the progression of Parkinson's disease. Yet these subtle signs often go unnoticed.
Green tea is an ancient beverage recognized for its medicinal and antioxidant properties. It has been widely studied for its beneficial effects on metabolic diseases, such as obesity and type 2 diabetes.
A Mediterranean-style diet, rich in fiber, vegetable proteins and healthy fats, benefits maternal health during pregnancy and breastfeeding.
Implementing changes to indoor environments, such as cooler bedrooms at night and increasing the amount of bright light during the day, could significantly improve sleep for people living with dementia, according to a study led by the University of Surrey.
A pizza shop with 30 delivery people ought to be able to deliver a lot of pizzas - if their cars don't break down on the way.
This study reveals how gene expression patterns uncover molecular pathways linking comorbidities, enhancing treatment strategies for overlapping diseases.
Researchers from University of California San Diego Sanford Stem Cell Institute have discovered that spaceflight accelerates the aging of human hematopoietic stem and progenitor cells (HSPCs), which are vital for blood and immune system health.
As protein-rich diets become increasingly popular, a new study suggests that categorizing dietary proteins as either animal- or plant-based fails to effectively capture the source-specific differences in their composition, digestive efficiency and accessibility to the gut microbiota.
Research reveals immune cells target brainstem nerves, linking smell loss to early Alzheimer's, offering potential for earlier diagnosis and intervention.
Deep in the Bolivian Amazon exists a forager-horticultural community called the Tsimane. Researchers look to them for insights on how the human body functioned prior to modern technologies, as their lifestyles remain the closest to that of our ancestors.
Long-term use of benzodiazepine and related drugs has been linked to poorer quality sleep in older adults with insomnia.
Macrophages are part of the immune system's frontline; they attack and eat invaders to protect surrounding cells. They, along with other cells, maintain intracellular conditions through macroautophagy, using autophagosomes to help digest broken cell components.
Like bees breathing life into gardens, providing pollen and making flowers blossom, little cellular machines called mitochondria breathe life into our bodies, buzzing with energy as they produce the fuel that powers each of our cells.
The gut contains the largest collection of immune cells in the body. New research at the Buck Institute shows that some of those immune cells travel along the brain/gut axis in a mouse model of Alzheimer's disease (AD) providing a potential new therapeutic pathway for the memory-robbing malady.
A new study has found that blood pressure synchronises to predictable phrase structures in music. Blood pressure was more affected by loudness than tempo and was more strongly influenced by phrase structures that were more predictable.
Every 34 seconds, someone in the United States dies from heart disease. As nearly half of the country suffers from some form of cardiovascular disease (CVD), another 1 in 4 adults experience a mental health disorder in their lifetime, signaling an inevitable overlap.
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