Cortisol is an important hormone in the body, secreted by the adrenal glands and involved in the following functions and more:
Proper glucose metabolism
Regulation of blood pressure
Insulin release for blood sugar maintenance
Immune function
Inflammatory response
Small increases of cortisol have some positive effects in stressful situations:
A quick burst of energy for survival reasons
Heightened memory functions
A burst of increased immunity
Lower sensitivity to pain
Helps maintain homeostasis in the body
While cortisol is an important and helpful part of the body’s response to stress, it’s important that the body’s relaxation response to be activated so the body’s functions can return to normal. Higher and more prolonged levels of cortisol in the bloodstream (like those associated with chronic stress) have been shown to have negative effects, such as:
Impaired cognitive performance
Suppressed thyroid function
Blood sugar imbalances such as hyperglycemia
Decreased bone density
Decrease in muscle tissue
Higher blood pressure
Lowered immunity and inflammatory responses in the body, as well as other health consequences