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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.

Triglycerides identified as direct cause of abdominal aortic aneurysms

High levels of triglycerides, the most common type of fat in the body and the foods we eat, directly cause abdominal aortic aneurysms, according to a study in mouse models led by Michigan Medicine.

14 Aug 2025

Surprising sweetness differences in popular U.S. infant formulas

A study on infant formulas reveals significant differences in sweetness, highlighting the impact of ingredients on children's nutrition and taste preferences.

14 Aug 2025

New computer model provides detailed look at mouse brain vasculature

Healthy brain function relies on a steady supply of blood. Disruptions in blood flow are linked to major neurological conditions like stroke, Alzheimer's disease (AD), and traumatic brain injuries. But understanding how the brain fine-tunes this flow – especially across its smallest blood vessels – remains a challenge.

13 Aug 2025

Study identifies risk factors that increase risk of death in children with Fontan circulatory failure

A multi-center study has identified critical risk factors that increase the likelihood of death in children with a heart defect who are awaiting or have recently undergone heart transplantation, according to findings published in Circulation.

11 Aug 2025

New biomarker may be the first specific and quantifiable indicator for confirming long COVID

Researchers from the Translational Genomics Research Institute (TGen), part of City of Hope, and the Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center have identified a potential biomarker for long COVID.

11 Aug 2025

Lithium deficiency emerges as a hidden driver of Alzheimer’s

What is the earliest spark that ignites the memory-robbing march of Alzheimer’s disease? Why do some people with Alzheimer’s-like changes in the brain never go on to develop dementia? These questions have bedeviled neuroscientists for decades.

8 Aug 2025

Study links epigenetic markers to cardiovascular risk in type 2 diabetes

People with type 2 diabetes are up to four times more likely to have heart attacks, strokes, anginas and other coronary heart diseases than healthy people.

7 Aug 2025

Heart cells adapt and stretch to shape a healthy beating heart

Researchers at the Francis Crick Institute have discovered that the heart's own contractions trigger biological signals that guide the formation of a functional beating heart.

6 Aug 2025

Nighttime caffeine linked to increased impulsivity

Do you find yourself reaching for a cup of coffee at night to stay alert? A new study from The University of Texas at El Paso suggests you might want to reconsider.

5 Aug 2025

Weight loss with ozempic may weaken muscles even when size remains stable

As use of the popular anti-diabetic and weight-loss drug Ozempic skyrockets, so have concerns about the medication's side effects.

5 Aug 2025

Scaling organ‑chip technology for human‑relevant drug discovery

Discover how AVA brings scale and reproducibility to organ‑chip technology, enabling human‑relevant insights that accelerate drug discovery workflows.

From Emulate, Inc. 5 Aug 2025

Natural brain rhythms control stress hormone levels and alertness

Ōtākou Whakaihu Waka-led research has found stress-controlling brain cells switch on and off in a steady rhythm about once every hour – even when nothing stressful is happening.

4 Aug 2025

Editorial emphasizes the critical role of heart-lung interactions in pulmonary vascular disease

A new editorial published in Comprehensive Physiology underscores the critical importance of understanding heart-lung interactions in pulmonary vascular disease (PVD).

4 Aug 2025

New research reveals why fiber-rich diets fuel you better than refined foods

This study quantifies how much energy the human body harvests from gut microbial fermentation of dietary fiber, integrating bacterial physiology, diet, and metagenomic data. Results reveal that dietary fiber, not microbiome composition, mainly determines the amount of short-chain fatty acids absorbed, impacting daily energy and metabolic health.

31 Jul 2025