physiology

Scientific Reports, Published online: 30 April 2026; doi:10.1038/s41598-026-49353-x The effect of eccentric exercise-induced delayed onset neck muscle soreness on force steadiness and the spatial distribution of neck extensor muscle activity

Men tend to have a higher ratio of muscle to fat, but women respond just as well to resistance training This is a common misconception, says Prof Leigh Breen, a muscle physiology specialist at the University of Leicester, though it’s easy to see where it comes from. Men typically have a higher ratio of muscle to fat than women, largely because of differences established during puberty, when testo…

Scientific Reports, Published online: 25 April 2026; doi:10.1038/s41598-026-49695-6 Melanopic equivalent daylight illuminance of 2 lx maintains and restores physiological and neurophysiological circadian rhythms in rats

Long-duration microgravity induces pronounced musculoskeletal (especially lower-limb) and systemic cardiovascular deconditioning. We evaluate a combined countermeasure, artificial gravity (AG) via a short-arm, constant-radius centrifuge, lower-body negative pressure (LBNP), and resistive exercise (RE), to mitigate physiological and structural deconditioning in spaceflight analogs.

Astronauts' grip strength is severely impacted by space travel, with significant safety risks highlighted by a new study.

In short bursts, this hormone can help you face your fears. But in the long run, too much of it can be unhealthy.

Maternal cardiac remodeling during pregnancy is a structured physiological process that supports increased circulatory demand while preserving functional stability and enabling postpartum recovery. This process can be described in terms of the interaction between intrinsic adaptive capacity and exposure load. Intrinsic adaptive capacity reflects the system’s ability to generate and sustain coordi…

Musculature, strength, size, and endurance are maintained only so long as they are demanded. The moment that demand disappears, the physiological mechanisms that once built muscle now work towards energy conservation, initiating a gradual, though measurable, decline

How does the human body manage its energy when pushed to the brink? New research shows that during extreme physical stress, deep evolutionary programming kicks in, sacrificing tissue repair and reproduction to keep the immune system active.

University of Oregon scientists discovered why sitting in hot water feels like moderate exercise.

Bio-hacks from the world’s tallest mammal could lead to new treatments for chronic hypertension.

This strange investigation into whether humans can use the gut for breathing has surprisingly heartwarming origins: helping the scientist’s dad.

Arminia Bielefeld fans knew this season was different. Their third-division club had somehow scraped through to face VfB Stuttgart in the German cup final on May 24, 2025. Berlin’s Olympic Stadium. The biggest match in the club’s history, and researchers at Bielefeld University had a question: what does football fever actually do to your body? Turns out, quite a lot. Over 12 weeks, 229 fans wore …

On-Demand WEBINAR: Redox Regulation of Skeletal Muscle: A Journey from Liverpool to the International Space Station Original Air Date Wednesday, September 9, 2025 Join Dr. Anne McArdle and Dr. Malcolm Jackson as they explore groundbreaking research from the Muscle Laboratories at the University of Liverpool. They’ll examine how redox regulation influences the adaptive responses of skeletal muscle…

During the 1990s the Burmese Python (Python bivittatus) hit the headlines because of research done by Stephen Secor and Jared Diamond in Los Angeles. Secor was a postdoc in Diamond’s lab. Jared Diamond is of course the polymath who had three simultaneous careers: as a physiologist (in which capacity we have twice given invited papers at the same conference*); as an ornithologist and ecologist wor…

While ultramarathoners are capable of huge energy spurts, overall the athletes top out at 2.5 times the metabolic rate needed for basic body functions.

Konrad Rykaczewski shares new insights on how sweat helps the body survive extreme heat The post The real reason we sweat appeared first on School for Engineering of Matter, Transport and Energy .

Around the world, sweat is seen as gross. However, in extremely hot places — like Arizona’s Maricopa County, which recorded 608 heat-related deaths in 2024 — sweating is the body’s main line of defense. Although this summer was milder than in recent years, the Valley of the Sun still faced extreme heat, including nine days in June and 12 in July where temperatures reached 110 degrees or higher. I…

The fifth edition of A Visual Analogy Guide to Human Anatomy & Physiology (VAGAP), by Paul A. Krieger, uses visual analogies to assist students in learning the details of human anatomy and physiology. This new edition has been digitized to enhance learning by adding interactive self-quizzes, 3D anatomical models, videos, downloadable coloring pages, and auto-graded assessments. Purchase in the 20…