Between the lungs and in front of the heart sits a small gland called the thymus that wields incredible power over human health by producing T cells, key components of our immune system.

“Our discovery—the regulatory T cell recirculation back to the thymus—promotes repair through ... a novel pathway to regeneration in the gland,” said lead author Andri Lemarquis, MD ...

We are at a critical time and supporting climate journalism is more important than ever. Science News and our parent organization, the Society for Science, need your help to strengthen ...

Several small, firm axillary lymph nodes were palpable bilaterally. The thyroid gland was normal in size; no masses were felt in the neck. Fine rales and scattered wheezes were heard at the lung ...