At least it is in the brain, and the lowering of cortisol retinol caused in the brain (hippocampus) led to improvement in age-related memory loss. However, if you read the study you'll see that the authors seem convinced that retinol downregulates the glucorticoid "receptors" not just in the brain but pretty much everywhere in the body. So, if this is true it would be another good reason for increasing retinol intake. Another weapon against cortisol in addition to sugar.
http://www.frontiersin.org/Journal/10.3 ... 6/abstract
The study is free, just use the menu on the right to get to the different sections or download a PDF.
http://www.frontiersin.org/Journal/10.3 ... 6/abstract
The study is free, just use the menu on the right to get to the different sections or download a PDF.