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Nathan Goodyear

Neuropsychopharmacology - Testosterone Suppression of CRH-Stimulated Cortisol in Men - 0 views

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    Testosterone inhibits CRH and thus cortisol.
Nathan Goodyear

Testosterone Suppression of CRH-stimulated Cortisol in Men - 0 views

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    Testosterone inhibits CRH and thus cortisol production in men.  This has implications in men with low T and low Cortisol.
Nathan Goodyear

Excessive Sugar Consumption May Be a Difficult Habit to Break: A View From the Brain an... - 0 views

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    Only abstract available here, but sugar in the form of sucrose found to lower cortisol.  Increased activity in the hippocampus was evident in the sucrose arm of this study.  Both of these activities will lead to stress induced food addictions--particularly of sugar.  Sugar is highly addictive and should be especially avoided in children.  Of note, this study followed the cortisol levels through saliva.
Nathan Goodyear

Estradiol, but not testosterone, heightens cortisol-mediated negative feedback on pulsa... - 0 views

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    INteresting.  Estradiol enhances cortisol negative feedback on ACTH production in both men and women.
Nathan Goodyear

Does Cortisol Inhibit Pulsatile Luteinizing Hormone Secretion at the Hypothalamic or Pi... - 0 views

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    Cortisol inhbits LH secretion at the level of the Pituitary.  The result is a decreased pulse amplitude as a result of decreased pituitary response to GNRH.
Nathan Goodyear

Direct Inhibitory Effect of Glucocorticoids upon Testicular Luteinizing Hormone Recepto... - 0 views

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    glucocorticoids inhibit Testosterone production via down regulation of LH receptors at the level of the testicles.
Nathan Goodyear

Acute Suppression of Circulating Testosterone Levels by Cortisol in Men: The Journal of... - 0 views

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    Cortisol inhibits Testosterone production in men.
Nathan Goodyear

An inverse relationship between cortisol and BDNF levels in schizophrenia: data from hu... - 0 views

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    Elevated Cortisol found to have inverse association with BDNF.
Nathan Goodyear

Effect of Tongkat Ali on stress hormones and psychological mood state in moderately str... - 0 views

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    Tongkat Ali, commonly known as long jack, is found to reduce stress and increase Testosterone.  Stress is one of the common causes of low T in men.  It appears that long Jack functions as an adaptogen.
Nathan Goodyear

Exercise-Induced Responses in Salivary Testosterone, Cortisol, and ... - PubMed - NCBI - 0 views

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    Meta analysis of salivary Testosterone and cortisol finds mixed results.  The results are by no means uniform, but resistance training appears to trend to an increased salivary Testosterone and salivary Testosterone to salivary cortisol ratio.  Cardio trends the opposite.  This fits with prior literature on the types of exercise and hormone results.
Nathan Goodyear

Pituitary-adrenocortical function in abdominal obesity of males: ev... - PubMed - NCBI - 0 views

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    Obesity associated with decreased adrenal 21alpha-hydroxylase activity.  The result is decreased cortisol production in obese individuals.  
Nathan Goodyear

Reduced testosterone and adrenal C19 steroid levels in obese men. - PubMed - NCBI - 0 views

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    Decreased adrenal steroid production occurred in men with obesity.  Estrone positively correlated.
Nathan Goodyear

Age-related hormonal adaptations, muscle circumference and strength development with 8w... - 0 views

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    Moderate resistance training program over 8 weeks associated with increased Testosterone production in young and middle age lean men.  Growth hormone was also increased in both groups.  ACTH and cortisol decreased in this lean men.  
Nathan Goodyear

http://www.biomed.cas.cz/physiolres/pdf/prepress/932627.pdf - 0 views

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    good discussion of the effects of resistance training on Testosterone and cortisol in obese men.  The literature is more more clear on the effects of resistance training on healthy men, but the evidence in obese men is less clear--likely due to the disrupted metabolism.
Nathan Goodyear

Using testosterone and cortisol as bioma... [J Strength Cond Res. 2014] - PubMed - NCBI - 0 views

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    Study followed Total Testosterone:Cortisol ratios to monitor catabolic/anabolic states in basketball players.  The authors followed serum levels and monitored them 24-36 hours post game.  Those playing > 25 min/game had the lowest TT:C and highest cortisol indicating a catabolic state and making recovery critical.
Nathan Goodyear

Daily life stress and the cortisol awakening respon... [PLoS One. 2012] - PubMed - NCBI - 0 views

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    Interesting: cortisol levels upon awakening associated with successful stress coping during the day. 
Nathan Goodyear

Monitoring the circadian rhythm of se... [Domest Anim Endocrinol. 2013] - PubMed - NCBI - 0 views

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    Animal study finds very good correlation of salivary cortisol and free plasma cortisol.
Nathan Goodyear

Exercise and circulating cortisol levels... [J Endocrinol Invest. 2008] - PubMed - NCBI - 0 views

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    Study finds moderate and high intensity exercise associated with an elevated ACTH and serum Cortisol.
Nathan Goodyear

http://www.gfe-ev.de/onnews/2011/d2011_04_t01_01_02.pdf - 0 views

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    Study finds high intensity exercise and long duration, exceeding 40 mins, is associated with an increase in salivary Cortisol.
Nathan Goodyear

Effects of heavy-resistance training on hormonal response patterns in younger vs. older... - 0 views

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    resistance training associated with an increase in Total Testosterone and free Testosterone in young men with exercise and rest.  In contrast, with older men, the increase was seen with TT only.  An increase in IGF-1 was seen and a decrease in resting cortisol was seen.
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