Researchers at the Heidelberg University Hospital conducted a study in which they subjected a young doctor to a job interview, which they made even more stressful by forcing him to solve complex math problems for thirty minutes. Afterward, they took a blood sample. What they discovered was that his antibodies had reacted to stress the same way they react to pathogens, activating the proteins that trigger an immune response. The problem is that this response not only neutralizes harmful agents, it also damages healthy cells, leading them to age prematurely.
