Julie Dugdale

How much is too much? The answer is trickier than you might think for a surgeon removing a brain tumor. Ideally, the whole thing would come out. But cutting out...

The immune system relies on T cells to attack abnormalities that sneak into the body. Each invader triggers only one type of T cell, like a stubborn bolt that requires...

Just like people, the cells in human bodies aren’t in a hurry to meet their maker. Normally, cells have a natural life cycle that ends in a process called apoptosis,...