Surgery

US Army gives combat medics new type of tourniquet

Throughout the history of modern warfare, countless wounded fighters have been saved from bleeding to death by tourniquets—the straps or ties that wrap around a damaged limb and staunch hemorrhaging.

Health

Study reveals unexpected importance of the thymus in adults

The thymus gland—which produces immune T cells before birth and during childhood— is often regarded as nonfunctional in adults, and it's sometimes removed during cardiac surgery for easier access to the heart and major ...

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