Running extreme distances may strain more than just muscles and joints. New research suggests ultramarathons can alter red ...

Learn more about the impact ultramarathon running has on red blood cells and how it may do more harm than good for the body.

By Dennis Thompson HealthDay ReporterTHURSDAY, Feb. 19, 2026 (HealthDay News) — Ultra-marathon runners must be incredibly fit to endure races that can extend more than 100 miles, but their bodies pay ...

Scientists have uncovered more than 20 genes whose mutations cause familial forms of Parkinson's disease. One of these genes is known as VPS13C, and mutations in this gene may contribute to the ...

For patients with severe corneal injuries, blindness has often been seen as a life sentence. But a new eye stem cell transplant may change that. Scientists at Massachusetts Eye and Ear have ...

While most known types of DNA damage are fixed by our cells' in-house DNA repair mechanisms, some forms of DNA damage evade repair and can persist for many years, new research shows. This means that ...

Tiny structures inside your cells keep your body alive by turning food into fuel. These structures, called mitochondria, power every heartbeat, thought, and movement. When they fail, organs that need ...

Researchers discover how much inner-ear damage it takes to affect balance, showing why small declines can trigger major symptoms.