Cortisol is a steroid hormone made from cholesterol in the two adrenal glands above each kidney. It is best known for its role in the ‘fight or flight’ response and how, in stressful situations, it can increase the body’s energy production temporarily.

The secretion of cortisol is controlled by the hypothalamus, the pituitary gland and the adrenal gland [2]. When there are low cortisol levels in the blood, Continue reading “The Stress Hormone”