Hormones Part III: Optimal Levels of Cortisol, Insulin and Thyroid are Essential to Vibrant Health
Hormones Part III: Optimal Levels of Cortisol, Insulin and Thyroid are Essential to Vibrant Health: „Cortisol secretion is promoted by the presence of even the tiniest bit of light. This is why it is so important to sleep in a room that is completely dark with no alarm clock glowing in the dark. Researchers did a study of one hundred subjects who were placed in a completely dark room with the exception of a pin point of light on the back of their knees. Cortisol levels rose in each subject as a result.“