Dr. Eric Berg talks about cortisol and how to turn off cortisol and stress. Cortisol is a stress hormone that is located in a layer which is on top of the adrenal gland. Cortisol acts to stress and helps to adapt the body to stress levels. All stress is accumulative in the body and as people experience stress (even though it tends to reduce after some time), it begins to accumulate inside our body as the adrenal gland only has the “ON” switch. What you need to do is manually apply the “OFF” switch to reduce cortisol levels.