English Political Parties In 1678, a rumor spread through England that Roman Catholics were plotting to kill King Charles II and give the throne to Charles' brother, James, Duke of York (who was a Roman Catholic).
Also, when stress affects the immune system, the body can become vulnerable to infection. In the male anatomy, infections to the testes, prostate gland and urethra, can affect normal male reproductive functioning.
How stress affects brain performance. Stress hormones affect our memory and cognition. When we get upset, our cortisol levels elevate in the blood, and the part of our brain in which learning and memory resides -- the hippocampus -- starts dumping neurons as a reaction to stress. By getting smaller, our hippocampus negatively impacts our memory and learning capacity.