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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.

Can probiotics boost athletic performance? Review reveals what works and what still needs proof

A new review in Frontiers in Nutrition synthesizes recent evidence on how probiotic supplementation may impact gut health, immunity, and performance in athletes across various sports.

22 Jul 2025

Erythritol alters brain vessel function and may raise stroke risk

Study shows erythritol adversely affects brain microvascular cells, increasing oxidative stress and impairing nitric oxide production, linked to stroke risk.

21 Jul 2025

AI reshapes ARDS care by predicting risk, guiding ventilation, and personalizing treatment

Artificial intelligence and machine learning are transforming acute respiratory distress syndrome (ARDS) management, enabling earlier detection, precision risk stratification, and tailored therapies. Emerging AI techniques promise to improve outcomes, but real-world clinical validation and integration remain critical challenges.

21 Jul 2025

Overuse injuries spark lasting pain and mood changes through inflammation, rat study finds

Repetitive reaching tasks in mature female rats triggered persistent pain-like and sickness behaviors linked to a surge in IL-6-driven inflammation throughout muscles, blood, and the brain. These findings reveal how overuse injuries provoke both physical and mood-related symptoms through a neuroimmune cascade.

20 Jul 2025

Nuclear waste exposure in childhood associated with higher cancer incidence

Living near Coldwater Creek-a Missouri River tributary north of St. Louis that was polluted by nuclear waste from the development of the first atomic bomb-in childhood in the 1940s, '50s, and '60s was associated with an elevated risk of cancer, according to a new study led by Harvard T.H. Chan School of Public Health.

17 Jul 2025

Gut-brain axis in eating disorders offers new treatment potential

Understanding the gut-brain axis is key to addressing eating disorders. This study highlights microbiota's influence and emerging therapeutic approaches.

16 Jul 2025

New UAB-developed gene therapy for ALS receives orphan drug designation

The U.S. Food and Drug Administration (FDA) has granted orphan drug designation to a new gene therapy for Amyotrophic Lateral Sclerosis (ALS) developed at the Universitat Autònoma de Barcelona and licensed to the U.S. company Klotho Neurosciences, Inc.

15 Jul 2025

Computational biology unlocks rules of tissue self-organization

A team of researchers at ChristianaCare's Helen F. Graham Cancer Center & Research Institute and the University of Delaware believe they've found an answer.

15 Jul 2025

Visual food cues may lead to overeating even without hunger

Watching others eat tasty foods may lead to overeating, even in the absence of hunger, according to a new mouse study being presented Monday at ENDO 2025, the Endocrine Society's annual meeting in San Francisco, Calif.

14 Jul 2025

Popular sugar substitute could raise the risk of blood clots and stroke

From low-carb ice cream to keto protein bars to "sugar-free" soda, the decades-old sweetener erythritol is everywhere.

14 Jul 2025

Mapping how major organs communicate during physiological stress in humans

How major organs work together to manage extreme physiological stresses such as lack of oxygen and sleep has been mapped for the first time by researchers from UCL and the University of Portsmouth.

12 Jul 2025

Researchers uncover molecular switch controlling DNA packing in cell division

If measured from beginning to end, the DNA in our cells is too long to fit into the cell’s nucleus, explaining why it must be constantly folded and packaged.

10 Jul 2025

Lower body temperature found to directly influence glucose metabolism in mice

Some mammals are capable of hibernating during periods of low food availability in an effort to conserve energy and survive.

10 Jul 2025

New molecule linked to muscle loss in people with type 2 diabetes

Researchers at Karolinska Institutet have discovered a previously unknown molecule that may explain why people with type 2 diabetes often suffer from muscle weakness and muscle loss - a condition that has a major impact on quality of life and overall health.

10 Jul 2025

How does olive oil affect gut health?

Could olive oil’s hidden compounds be the key to a healthier gut? New research uncovers how olive-derived bioactives transform our microbiome and may unlock future therapies for digestive and metabolic health.

9 Jul 2025

Blood flow restriction can match gym gains without joint strain

A clinical trial compares high-intensity resistance training and blood flow restriction methods, revealing effective alternatives for muscle strength gains.

9 Jul 2025

Cysteine plays key role in weight loss and fat metabolism

Consuming fewer calories is largely accepted as a way to improve health and lose weight, but a recently published study in Nature Metabolism points to a specific sulfur-containing amino acid cysteine as a key component in weight loss.

7 Jul 2025

New combination therapy inhibits tumor growth and blocks drug-induced resistance in ovarian cancer

A pairing of two experimental drugs inhibits tumor growth and blocks drug-induced resistance in ovarian cancer, according to a preclinical study led by Weill Cornell Medicine investigators.

7 Jul 2025

Restoring neuron balance in the amygdala reverses anxiety in mice

The Synaptic Physiology laboratory, led by Juan Lerma at the Institute for Neurosciences (IN), a joint center of the Spanish National Research Council (CSIC) and Miguel Hernández University (UMH) of Elche, has discovered that a specific group of neurons in the amygdala, a brain region involved in emotion regulation, plays a key role in the emergence of conditions such as anxiety, depression, and altered social behavior.

4 Jul 2025

Early childhood weight and illness linked to future health risks in men

New research has shown how boys being overweight in early childhood or having chickenpox or another infectious disease in infancy may increase their risk of having chronic disease in later life.

3 Jul 2025