Researchers describe a novel acidic niche within lymph nodes that plays an integral role in regulating T cell activation. In the fight against cancer, the immune system is the first line of defense.

How does the brain take out its trash? That is the job of the brain's lymphatic drainage system, and efforts to understand how it works have pushed the boundaries of brain-imaging technologies.

Our cardiovascular system has a great partner in the lymphatic system. It does indispensable work for our immune system and cleans up between the cells. Sizwe Mpofu-Walsh fumes after President Cyril ...