Morning Overview on MSN
Blood immune cells start slipping into the human brain as early as middle age, a study finds
The brain has long been treated as a protected zone, walled off from the immune cells that patrol the rest of the body. A new ...
Morning Overview on MSN
People who live past 110 carry unusual immune cells that hunt down damaged cells, a study finds
People who reach the age of 110 and beyond may owe part of their extraordinary longevity to an immune system that keeps ...
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