neurosciencenews:

Our Senses Can’t Learn Under Stress

Stress is part of our everyday lives – while some thrive on it, it makes others sick. But what does stress do to our senses?

The research is in Psychoneuroendocrinology. (full open access)

Stress is an interesting physiological response as it is both evolutionarily beneficial and harmful. That is, in small acute instances it can be extremely useful but in chronicn incidents it is the opposite. The stress response positive feedback mechanism that weeks havoc in many systems. Cortisol inhibits the hippocampus which prevents the formation and retrieval of memories. Cortisol also has a profound negative effect on the immune system after chronic stress exposure the immune system is actually negatively affected. This is why everyone gets sick at the end of the semester.

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