Thank you for responding. I am a 60 year old female with a 20 year history of insomnia which is gradually worsening. I worked until 2 years ago in a highly stressful job and had significant family stress at the same time. Much of that has settled. I eat well and exercise daily. I have been diagnosed with depression, later changed to anxiety and last year had an episode of heart failure (Taketsubo-probably stress related). The medication I was using to help me sleep (Hypnodorm) was no longer working and I am reluctant to continue to use alternative strong medications. In desperation, I saw a nutritionalist/doctor who tested my cortisol levels and my morning cortisol level was way low. He has suggested low dose cortisol supplements for adrenal fatigue but I am concerned that taking cortisol will be a problem for either my heart or my anxiety. Any comments that would help?