Stress and adrenal function affect sleep particularly the circadian pattern of cortisol secretion by the adrenal glands. Sleep apnea is one of the most under recognized causes of poor sleep quality. Sleep Apnea Sleep Apnea Remedies Severe Sleep Apnea Cure For Posted by lostboyinncbecksdark on december 31 2007 at 21 43 27. Sleep apnea adrenaline . Circulating cortisol normally rises and falls throughout the 24 hour daily cycle and is typically highest at around 8 am and lowest between midnight and 4 am. Some people mistakingly believe that they re not candidates for sleep apnea if they re athletic and in top physical shape. We explore why that simply isn t true and how you may already be a. In individuals with sleep apnea surges of adrenaline are released in response to upper airway obstructions and low oxygen levels. They were however able to significantly lower the levels in those treated with continuous positive airway pressure cpap the most common treatment for obstruct...