cortisol

  1. Luann

    Who's Into Social Psychology?

    I loved this article. It's all about cortisol and how it influences your social status. Who isn't interested in that? http://decisionlab.harvard.edu/_content/research/papers/Lerner_et_al._Leadership_Associated_with_Lower_Stress.pdf
    • Luann
    • Thread
    • article cortisol leadership stress
    • Replies: 19
    • Forum: Stress
  2. DaveFoster

    T4 Raises ACTH And Cortisol

    Thyroid hormone action on ACTH secretion. - PubMed - NCBI "Thyroid hormone effects on pituitary ACTH have not been well established. Adult male Sprague-Dawley rats were rendered hypo- and hyperthyroid while undergoing treatment with 6-Propylthiouracil (PTU) and L-Thyroxine (T4). At the time of...
  3. haidut

    Prolactin Increases Cortisol Secretion

    I think this is a pretty important study as it provides further evidence of the close relationship between various biomarkers of stress such as prolactin, estrogen, and cortisol. As Ray said, estrogen is really not a female hormone but rather the stress hormone. Prolactin is pretty similar, and...
    • haidut
    • Thread
    • bromocriptine cortisol cushing prolactin stimulate stress study synthesis
    • Replies: 21
    • Forum: Scientific Studies
  4. haidut

    DHT Reduces Glucocorticoid Effects

    I mentioned this on one of the Danny Roddy shows, but wanted to post this study here as many people have been asking me for references over email. In addition to reducing glucocorticoid effects, DHT is also an estrogen "receptor" antagonist as I posted in another thread. DHT Is Estrogen...
  5. L

    Cortisol Linked To Aggression In 10yr Old Boys

    Hormone cortisol linked to aggression in 10yr old boys: https://www.sciencedaily.com/releases/2016/03/160316085023.htm
    • lollipop
    • Thread
    • aggression article children cortisol health
    • Replies: 0
    • Forum: Mind, Sleep, Stress
  6. haidut

    Pregnenolone Is The Most Potent Inhibitor Of The Stress Signal (CRH)

    I think this study should finally put to rest the arguments and debates of whether pregnenolone raises or lowers cortisol, and how it affects the stress response overall. I posted a similar study, which showed that the pregnenolone metabolites progesterone and allopregannolone potently inhibited...
    • haidut
    • Thread
    • acth allopregnanolone artemisia cortisol crf crh inhibitor pregnenolone stress
    • Replies: 116
    • Forum: Scientific Studies
  7. S

    THC On Serum Cortisol And Prolactin

    The effects of cannabinoids on serum cortisol and prolactin in humans
  8. P

    Power Posing: Brief Nonverbal Displays Affect Neuroendocrine Levels And Risk Tolerance

    Power posing: brief nonverbal displays affect neuroendocrine levels and risk tolerance. - PubMed - NCBI Abstract Humans and other animals express power through open, expansive postures, and they express powerlessness through closed, contractive postures. But can these postures actually cause...
  9. haidut

    Stress Elevates Estrogen, Not Just Cortisol

    I receive many emails challenging Peat's assertion that estrogen is a stress hormones and that it rises under conditions of both acute and chronic stress. Cortisol is the stress hormones they say, leave estrogen alone. Well, not according to this study. Also, estrogen damages the negative...
  10. haidut

    Aspirin Decreases Cortisol And Increases Testosterone In Humans

    This was a short-term human study, which makes it particularly interesting to athletes and people with hypothyroidism. When Ray was asked about declining health in an aging male, his response was: "...Thyroid deficiency in men typically causes a high ratio of cortisol to testosterone, with a...
  11. haidut

    The Anti-cortisol Effects Of Niacinamide

    This is yet another confirmation of my suspicion that sedative substances lower cortisol levels. Niacinamide is officially recognized as a GABA-A agonist, but apparently this is not the major reason behind its effect on cortisol. The enzyme that de-activates cortisol - 11b-HSD2 - is apparently...
    • haidut
    • Thread
    • 11β-hsd1 11β-hsd2 cortisol diabetes hypertension niacinamide obesity study
    • Replies: 43
    • Forum: Scientific Studies
  12. goodandevil

    Restless Legs Associated With Increased Cortisol, Hpa Activation

    Restless legs syndrome: evidence for nocturnal hypothalamic-pituitary-adrenal system activation. - PubMed - NCBI
  13. haidut

    Glycine Powerfully Lowers Cortisol

    I have long suspected that inhibitory amino acids suppress cortisol release. The reason is that most of these inhibitory amino acids like glycine, taurine, beta alanine, theanine, etc are all GABA agonists. GABA agonist pharma drugs are used to treat Cushing syndrome and are very effective at...
  14. haidut

    Amazing Medicinal Properties Of Beta-lapachone (β-lapachone)

    This thread is similar to the one I created for emodin and in support of the Lapodin supplement I released. Lapodin: Lapodin - Dietary Supplement With Beta-lapachone And Emodin | Ray Peat Forum Emodin: Amazing Medicinal Properties Of Emodin | Ray Peat Forum The purpose of this thread is to...
    • haidut
    • Thread
    • antibacterial antifungal antiviral beta-lapachone cancer cortisol cvd depression diabetes endotoxin estrogen inflammation lapachone nad napththoquinone neurological nitric oxide obesity serotonin β-lapachone
    • Replies: 22
    • Forum: Supplements
  15. haidut

    Amazing Medicinal Properties Of Emodin

    This thread is similar to the one I created for beta-lapachone and in support of the Lapodin supplement I released. Lapodin: https://raypeatforum.com/community/threads/lapodin-dietary-supplement-with-beta-lapachone-and-emodin.9423/ Beta-lapachone...
    • haidut
    • Thread
    • antibacterial antifungal antiviral cancer cortisol diabetes digestion emodin endotoxin estrogen inflammation nad neurological nitric oxide obesity scientific serotonin stress supplemental tnf
    • Replies: 44
    • Forum: Cascara Sagrada
  16. haidut

    Alzheimer Patients Have "aged" Adrenals, Higher Cortisol And Estrone

    Ray has written several times about the changes that occur in the adrenals with aging and stress/hypothyroidism. The adrenal layers change in structure and activity in a way that favors zona glomerulosa, which results in higher production of cortisol and estrogen. This study seems to confirm...
    • haidut
    • Thread
    • adrenals aging alzheimer's blood-brain barrier cortisol estrone study
    • Replies: 4
    • Forum: Scientific Studies
  17. haidut

    Pufa Stimulates Cortisol Production Even In The Absense Of Acth

    Many people opposing Peat have complained that there is no evidence for PUFA acting on the stress hormones or that oxidizing PUFA is bad for health. Well, this study not only shows otherwise but also demonstrates that a PUFA metabolite is capable of stimulating cortisol synthesis even in the...
  18. haidut

    Plasticisers (bpa, Dehp) Boost Pufa, Estrogen, Cortisol & Block Glucose Oxidation

    While the FDA continues to claim that BPA and other plastic derivatives are harmless since no known mechanism exists to explain their effects, the mechanisms of action have been quite well known for decades. BPA specifically is an estrogen "receptor" agonist more potent than estradiol, AND also...
    • haidut
    • Thread
    • bpa bps cortisol dehp estrogen glucose insulin obesity plastic pufa
    • Replies: 36
    • Forum: Scientific Studies
  19. haidut

    Estrogen Potentiates The Effects Of Chronic Stress

    A very, very important study, confirming Peat's views on how estrogen participates in the stress response manifested by release of CRF/CRH, ACTH, cortisol and adrenaline. Unfortunately, the public press release is misleading and many will take away the message that both estrogen and progesterone...
  20. haidut

    Blocking Cortisol May Treat Alcohol "addiction"

    This is yet another piece of evidence confirming Ray's views and the findings of the Rat Park experiment. Here is another recent study, showing elevated stress hormones in another type of "addiction". viewtopic.php?f=231&t=8386 In other words, there is no such thing as "addiction" but rather...
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