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Nathan Goodyear

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

www.nature.com/...1300742a.html

Testosterone cortisol hormone hormones men male

shared by Nathan Goodyear on 19 Jun 15 - No Cached
  • Nathan Goodyear on 19 Jun 15
     
    Testosterone inhibits CRH and thus cortisol.
Nathan Goodyear

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

www.ncbi.nlm.nih.gov/...PMC1470424

Testosterone cortisol HPA hormone hormones men male

shared by Nathan Goodyear on 19 Jun 15 - No Cached
  • Nathan Goodyear on 19 Jun 15
     
    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

press.endocrine.org/...jc.2014-4353

sugar sucrose brain hippocampus aspartame cortisol saliva salivary hormone hormones

shared by Nathan Goodyear on 20 Apr 15 - No Cached
  • Nathan Goodyear on 20 Apr 15
     
    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

ajpregu.physiology.org/...R627

Testosterone Estradiol hormone hormones cortisol ACTH stress

shared by Nathan Goodyear on 04 Apr 15 - No Cached
  • Nathan Goodyear on 04 Apr 15
     
    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

press.endocrine.org/...en.2003-1114

cortisol stress LH pituitary hypothalamus GnRH hormone hormones

shared by Nathan Goodyear on 02 Apr 15 - No Cached
  • Nathan Goodyear on 02 Apr 15
     
    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

press.endocrine.org/...endo-108-6-2142

glucocorticoids cortisol Testosterone LH low T low Testosterone men male hormones hormone

shared by Nathan Goodyear on 02 Apr 15 - No Cached
  • Nathan Goodyear on 02 Apr 15
     
    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

press.endocrine.org/...jcem-57-3-671

Cortisol Testosterone stress men male hormone hormones

shared by Nathan Goodyear on 02 Apr 15 - No Cached
  • Nathan Goodyear on 02 Apr 15
     
    Cortisol inhibits Testosterone production in men.
Nathan Goodyear

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

www.ncbi.nlm.nih.gov/...20451611

BDNF cortisol brain hormone hormones schizophrenia

shared by Nathan Goodyear on 26 Mar 15 - No Cached
  • Nathan Goodyear on 26 Mar 15
     
    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

www.ncbi.nlm.nih.gov/...PMC3669033

Tongkat Ali long jack cortisol stress testosterone hormone hormones

shared by Nathan Goodyear on 09 Mar 15 - No Cached
  • At the age of 60, testosterone levels are typically only 40-50% of youthful levels and may be lower
  • Eurycoma contains a group of small peptides referred to as “eurypeptides” that are known to have effects in improving energy status and sex drive in studies of rodents
  • The effects of tongkat ali in restoring normal testosterone levels appears to be less due to actually “stimulating” testosterone synthesis, but rather by increasing the release rate of “free” testosterone from its binding hormone, sex-hormone-binding-globulin (SHBG)
  • ...6 more annotations...
  • The current study found that daily supplementation with tongkat ali root extract (200 mg/day) improves stress hormone profile (lower cortisol; higher testosterone) and certain mood state parameters (lower tension, anger, and confusion)
  • tongkat ali supplementation (100 mg/day) improved lean body mass, 1-RM strength, and arm circumference to a significantly greater degree compared to a placebo group.
  • In a recent 12-week trial [] of Eurycoma longifolia supplementation (300 mg/day), men (30–55 years of age) showed significant improved compared to placebo in the Physical Functioning domain of the SF-36 quality of life survey
  • sexual libido was increased by 11%
  • In men with low testosterone levels (average age 51 years), one month of daily supplementation with tongkat ali extract (200 mg/day) resulted in a significant improvement in serum testosterone levels and quality-of-life parameters
  • rise in cortisol and drop in testosterone is an early signal of “overtraining”
  • Nathan Goodyear on 09 Mar 15
     
    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

www.ncbi.nlm.nih.gov/...25655373

saliva salivary hormone hormones Testosterone cortisol exercise resistance training aerobic exercise

shared by Nathan Goodyear on 16 Feb 15 - No Cached
  • Nathan Goodyear on 16 Feb 15
     
    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

www.ncbi.nlm.nih.gov/...8809194

obesity obese 21-hydroxylase adrenal cortisol hormone hormones

shared by Nathan Goodyear on 28 Oct 14 - No Cached
  • Nathan Goodyear on 28 Oct 14
     
    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

www.ncbi.nlm.nih.gov/...7723675

obesity obese men low Testosterone low Testosterone male hormones hormone adrenal cortisol

shared by Nathan Goodyear on 28 Oct 14 - No Cached
  • Nathan Goodyear on 28 Oct 14
     
    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

www.biomedsearch.com/...23337018.html

resistance training resistance training exercise strength muscle Testosterone GH growth hormone ACTH cortisol hormone hormones men male

shared by Nathan Goodyear on 03 Sep 14 - No Cached
  • Nathan Goodyear on 03 Sep 14
     
    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

www.biomed.cas.cz/...932627.pdf

resistance training exercise resistance Testosterone cortisol men obese obesity hormone hormones

shared by Nathan Goodyear on 02 Sep 14 - No Cached
  • Nathan Goodyear on 02 Sep 14
     
    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

www.ncbi.nlm.nih.gov/...25144130

Total Testosterone cortisol testosterone:cortisol hormone hormones performance exercise stress

shared by Nathan Goodyear on 26 Aug 14 - No Cached
  • Nathan Goodyear on 26 Aug 14
     
    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

www.ncbi.nlm.nih.gov/...23284871

cortisol stress cortisol awakening response hormone hormones

shared by Nathan Goodyear on 23 Aug 14 - No Cached
  • Nathan Goodyear on 23 Aug 14
     
    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

www.ncbi.nlm.nih.gov/...23688596

saliva salivary cortisol testing HPA hormone hormones

shared by Nathan Goodyear on 23 Aug 14 - No Cached
  • Nathan Goodyear on 23 Aug 14
     
    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

www.ncbi.nlm.nih.gov/...18787373

Cortisol exercise hormone hormones ACTH high intensity training low intensity testing

shared by Nathan Goodyear on 03 Aug 14 - No Cached
  • Nathan Goodyear on 03 Aug 14
     
    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

www.gfe-ev.de/...d2011_04_t01_01_02.pdf

Cortisol exercise saliva salivary hormone hormones

shared by Nathan Goodyear on 03 Aug 14 - No Cached
  • Nathan Goodyear on 03 Aug 14
     
    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

jap.physiology.org/...982

resistance training exercise Testosterone IGF-1 cortisol men male hormone hormones

shared by Nathan Goodyear on 03 Aug 14 - No Cached
  • Nathan Goodyear on 03 Aug 14
     
    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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