A walrus is seen in Alaska's Chukchi Sea in June of 2010. Research by a University of Alaska Fairbanks student found microplastics, mostly tiny fibers, were lodged in muscle tissue, blubber and livers ...

Obesity is easy to spot on a scale. What has been much harder to see is how deeply it reshapes the body beneath the surface.

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Obesity affects far more than metabolism and fat storage. It alters immune activity, nerve structure, and tissue organization across multiple organ systems, increasing the risk of diseases including ...

Share on Pinterest Research shows that exercise can help reduce age-related fat buildup in the body. Thomas Barwick/Getty Images Certain changes occur in the body with age. Researchers are seeking to ...

Sarcoma is a type of cancer that originates in the bones or soft tissue. Soft tissue sarcoma (STS) most often begins in the arms and legs but can also occur in other body parts. Soft tissues include ...

While both types of tissue grafts can produce similar results, the path to surgery and recovery can vary widely between allografts and autografts. Every year, millions of people undergo tissue ...

You may not be able to grow bigger muscles out of thin air, but you can 3D print them in microgravity, scientists at ETH Zurich have now established. "3D printing" refers to a type of manufacturing ...

A new study has provided some of the clearest evidence yet of how smoking physically damages human lungs. For the first time, ...

You may have muscle shaking or cramping, signs of temporary lactic acid build-up during intense exercise. Signs of lactic acidosis include nausea, vomiting, and shortness of breath. Staying hydrated ...