CPD Endocrine Review: H-P Gonadal axis
May. 10th, 2009 06:02 pmWhich gland produces Gonadotropin Releasing Hormone (GnRH)?
hypothalamus
GnRH is released in pulses every how many minutes?
90-120
( more )
hypothalamus
GnRH is released in pulses every how many minutes?
90-120
( more )
Adrenal Fatigue
Jul. 17th, 2008 07:23 pm--adrenal glands not functioning at optimal level
--when at rest, under stress, or in response to consistent, intermittent, or sporadic demands
--adrenals secrete 50+ hormones incl: epinephrine, cortisol, progesterone, DHEA, estrogen, and testosterone
--adrenal fatigue aka Non-Addison’s hypoadrenia, subclinical hypoadrenia, neurasthenia, adrenal neurasthenia, and adrenal apathy
( etiology, signs/symptoms, diagnosis, treatment )
--when at rest, under stress, or in response to consistent, intermittent, or sporadic demands
--adrenals secrete 50+ hormones incl: epinephrine, cortisol, progesterone, DHEA, estrogen, and testosterone
--adrenal fatigue aka Non-Addison’s hypoadrenia, subclinical hypoadrenia, neurasthenia, adrenal neurasthenia, and adrenal apathy
( etiology, signs/symptoms, diagnosis, treatment )
Making Steroid Hormones from Cholesterol
Mar. 22nd, 2008 09:36 pmVery useful illus:
http://upload.wikimedia.org/wikipedia/commons/8/8f/Steroidogenesis.gif
http://upload.wikimedia.org/wikipedia/commons/8/8f/Steroidogenesis.gif
Testosterone Levels Elevated in Murderer
Jul. 17th, 2007 03:33 pmTestosterone has a powerful effect on individual behavior. Here's a current example: Chris Benoit, the professional wrestler whose levels were high on the day that he "apparently strangled his wife, suffocated their 7-year-old son and hanged himself". My question is this: how high were his T levels the REST of the time?
The BBC posted about a new study today that found a correlation between low testosterone in men over 50, and the cluster of conditions known as metabolic syndrome (high blood sugar, high cholesterol, and high blood pressure). I wonder if the 33% higher death rate associated with low testosterone could be related to inactivity and poor diet that results in metabolic syndrome. In the article, men are advised to "stay active" in order to prevent low testosterone. "Keeping a good body shape will help maintain your testosterone levels." The study also indicated that testosterone levels in men of all ages are decreasing.
http://news.bbc.co.uk/2/hi/health/6723723.stm

http://news.bbc.co.uk/2/hi/health/6723723.stm

the Indigo Girls
May. 22nd, 2007 10:03 pmThe whole time I was watching them play, I kept thinking it would be nicer if we had a campfire. It was a tit bit nipply out there. It would be nice if we were on some isolated beach along a river. We could sit in a circle around the campfire, dispense with all the big speakers and shit, and have a conversation. Pass a pipe. Sing a song. Relax and enjoy the quiet in between the stories. I so much prefer a folksy personal musical atmosphere to the modern concert scene. There were a thousand or so too many people there for my preferred setup. Of course, this was a benefit show, with money going to good causes. The Indigo Girls consistently do their part to raise funds for others. They believe in tolerance and love, and in caring for our planet. Messages that could use more air time.
( Reaction Paper #401 )
( Reaction Paper #401 )
Macho vs Nerd: Men in Yoga
May. 20th, 2007 07:31 amDuring yesterday's yoga class Al had us pair up a few times with others for assists on poses. One time I worked with Joni and a new girl, assisting each other doing backbends. One person did the Urdhva Dhanurasana, or upward facing bow, while the two assistants provided traction between the shoulders and hips, and helped the heart come forward by pressing between the shoulderblades. It felt really good and we all enjoyed it.

( Stories from my life )

( Stories from my life )
High T Individuals Like to Piss You Off
Apr. 1st, 2007 08:37 pmPeople with high testosterone levels tease more:
http://www.livescience.com/healthday/603144.html
Fans of winning teams more likely to be aggressive:
http://news.bbc.co.uk/2/hi/health/6511979.stm
http://www.livescience.com/healthday/603144.html
Fans of winning teams more likely to be aggressive:
http://news.bbc.co.uk/2/hi/health/6511979.stm
Human hormones are being altered by the hormonal inputs to foods we eat, the containers we store our food in, and toxins that we are exposed to in everything from our drinking water to our air. The endocrine system guides our development, and great trouble can be caused by manipulating children's hormones. Bovine growth hormone, which is used in nearly all commercial beef, causes kids to grow to be giants. This problem is only going to get more visible, as more children turn into mutants. The EPA was supposed to create a screening program a decade ago but according to Mercola it was blocked by chemical manufacturers. Hmmmm.
This link mentions a couple of very young children who began to grow pubic hair (we're talking kindergarten age) because........their father was using a testosterone cream and they absorbed it through their skin. It also offers a list of how you can minimize your own exposure to endocrine-altering chemicals.
http://www.mercola.com/2006/oct/31/why-are-kids-entering-puberty-before-they-enter-school.htm
And here's another one about kids hitting puberty in their very early years:
http://abcnews.go.com/Health/print?id=2610353
This link mentions a couple of very young children who began to grow pubic hair (we're talking kindergarten age) because........their father was using a testosterone cream and they absorbed it through their skin. It also offers a list of how you can minimize your own exposure to endocrine-altering chemicals.
http://www.mercola.com/2006/oct/31/why-are-kids-entering-puberty-before-they-enter-school.htm
And here's another one about kids hitting puberty in their very early years:
http://abcnews.go.com/Health/print?id=2610353
http://bodyandhealth.canada.com/channel_health_news_details.asp?news_id=10360&news_channel_id=158&channel_id=158&rot=11
According to this article Landis tested positive for synthetic testosterone after his miraculous comeback in the Tour de France. Other articles indicate that the results are "reliable".

Does he look like a high testosterone individual to you?
My gut feeling is that Floyd Landis did not take supplemental T. I think he is the sort of animal who can chemically manufacture massive amounts of hormone when fueled with beer and whiskey. I would like to know what else happened the night between his hard day and his comeback. The ratio of hormones that was tested in Landis (11:1) when the supposed "normal" ratio is 1 to 2:1 while the ratio that causes alerts in the doping scene is 4:1. An NPR commentator mentioned that the ratio could also be altered by a lowering of the second hormone in the ratio.
I don't know how much data is behind the doping-board's understanding of testosterone and its natural fluctuations in an athelete. I doubt their finding that he must be doping. I have any reason to believe that the carbon isotope testing is reliable--I think we are in the great gray area, the unknown. I do believe that people's hormones can change dramatically based on circumstances--because I have seen it. Just as fast as we can push out a jolt of adrenaline, we also can alter other chemical balances in our bodies far more than science has yet to acknowledge. But then as my friend Terry constantly reminds me, my impressions and personal experience are not statistically relevant.
Still, I am inclined to believe Landis when he denies taking illegal drugs, and claims that his name will be cleared.
I would love to know his testosterone levels hourly for the 24 hours after he found out he lost the title. I bet they plummet. And it may be a once in a lifetime surge that he experienced......imagine having lost the race one day before the end, and having nothing to loose, riding like he did. He may never have that feeling again.
This is not just about testosterone. That hormone is only one indicator of how he must have felt, with the chance to win a race whose winning slot has been tied up for years. He was a human animal in prime form, in a very competitive and exciting situation. I bet his blood was a cocktail of human chemistry WAY out of its normal range.
Stress lowers T. That Landis was drinking whiskey tells me that he wasn't too worried. Or treating his stress. The NPR story also mentioned that there is research out there supporting the idea that beer increases T. Just one study.
According to this article Landis tested positive for synthetic testosterone after his miraculous comeback in the Tour de France. Other articles indicate that the results are "reliable".

Does he look like a high testosterone individual to you?
My gut feeling is that Floyd Landis did not take supplemental T. I think he is the sort of animal who can chemically manufacture massive amounts of hormone when fueled with beer and whiskey. I would like to know what else happened the night between his hard day and his comeback. The ratio of hormones that was tested in Landis (11:1) when the supposed "normal" ratio is 1 to 2:1 while the ratio that causes alerts in the doping scene is 4:1. An NPR commentator mentioned that the ratio could also be altered by a lowering of the second hormone in the ratio.
I don't know how much data is behind the doping-board's understanding of testosterone and its natural fluctuations in an athelete. I doubt their finding that he must be doping. I have any reason to believe that the carbon isotope testing is reliable--I think we are in the great gray area, the unknown. I do believe that people's hormones can change dramatically based on circumstances--because I have seen it. Just as fast as we can push out a jolt of adrenaline, we also can alter other chemical balances in our bodies far more than science has yet to acknowledge. But then as my friend Terry constantly reminds me, my impressions and personal experience are not statistically relevant.
Still, I am inclined to believe Landis when he denies taking illegal drugs, and claims that his name will be cleared.
I would love to know his testosterone levels hourly for the 24 hours after he found out he lost the title. I bet they plummet. And it may be a once in a lifetime surge that he experienced......imagine having lost the race one day before the end, and having nothing to loose, riding like he did. He may never have that feeling again.
This is not just about testosterone. That hormone is only one indicator of how he must have felt, with the chance to win a race whose winning slot has been tied up for years. He was a human animal in prime form, in a very competitive and exciting situation. I bet his blood was a cocktail of human chemistry WAY out of its normal range.
Stress lowers T. That Landis was drinking whiskey tells me that he wasn't too worried. Or treating his stress. The NPR story also mentioned that there is research out there supporting the idea that beer increases T. Just one study.
the testosterone pages continue
Jun. 21st, 2006 11:29 amThe home field advantage could be due to increased T in the home team prior to games--theoretically to help them defend their turf:
http://thechronicleherald.ca/Canada/511453.html
http://www.timesonline.co.uk/article/0,,13509-2235272,00.html
http://www.14wfie.com/Global/story.asp?S=5059139&nav=3w6q
You can get a drug that will lower your T to "castrate serum" levels--for control of sexual drive in adult men--it's approved in Sweden:
http://biz.yahoo.com/prnews/060620/ukm018.html?.v=40
Low T may be linked to type 2 Diabetes:
http://www.drugnewswire.com/1985/
And a bit of reporting swiped from Seed Magazine at:
http://www.seedmagazine.com/news/2006/06/i_cant_believe_its_science_69.php:
Fall Flat
In autumn, the leaves fall, the temperatures fall and our sexy spring figures fall. According to a study accepted for publication by the journal Psychoneuroendocrinology, the location of our body fat changes along with the seasons. As testosterone levels start to rise in the summer, women gain fat around their waists, giving them a higher waist-to-hip ratio. Men experience the opposite effect, losing weight from their midsection as autumn approaches. Neither of the fall fashions looks particularly good: The literature shows that the curvaceous look of a low waist-to-hip ratio uniformly appeals to men, and chicks dig the more uniform, manlier physique on men.
(source: Discovery News)
also: http://www.elsevier.com/wps/find/journaldescription.cws_home/473/description#description
And an interesting article on MALE MENOPAUSE AND TRT testosterone replacement therapy:
http://www.netdoctor.co.uk/menshealth/feature/malemenopause.htm
http://thechronicleherald.ca/Canada/511453.html
http://www.timesonline.co.uk/article/0,,13509-2235272,00.html
http://www.14wfie.com/Global/story.asp?S=5059139&nav=3w6q
You can get a drug that will lower your T to "castrate serum" levels--for control of sexual drive in adult men--it's approved in Sweden:
http://biz.yahoo.com/prnews/060620/ukm018.html?.v=40
Low T may be linked to type 2 Diabetes:
http://www.drugnewswire.com/1985/
And a bit of reporting swiped from Seed Magazine at:
http://www.seedmagazine.com/news/2006/06/i_cant_believe_its_science_69.php:
Fall Flat
In autumn, the leaves fall, the temperatures fall and our sexy spring figures fall. According to a study accepted for publication by the journal Psychoneuroendocrinology, the location of our body fat changes along with the seasons. As testosterone levels start to rise in the summer, women gain fat around their waists, giving them a higher waist-to-hip ratio. Men experience the opposite effect, losing weight from their midsection as autumn approaches. Neither of the fall fashions looks particularly good: The literature shows that the curvaceous look of a low waist-to-hip ratio uniformly appeals to men, and chicks dig the more uniform, manlier physique on men.
(source: Discovery News)
also: http://www.elsevier.com/wps/find/journaldescription.cws_home/473/description#description
And an interesting article on MALE MENOPAUSE AND TRT testosterone replacement therapy:
http://www.netdoctor.co.uk/menshealth/feature/malemenopause.htm
Testosterone effects on appearance
Apr. 22nd, 2006 08:30 amAn excellent example of a man who LOOKS like he has very high testosterone is the Duke Lacrosse player Ryan McFadyen. Check out his mug. (PHOTO disappeared from web)
( Read more )
( Read more )
TESTOSTERONE (T for short)
Mar. 20th, 2006 09:30 pmTestosterone is the hormone that is most directly linked to libido in both men and women. It is also known as the primary sex hormone in men, and causes voices to deepen and facial hair to grow. T is associated with increased risk taking or adventure behavior, and agressiveness.
( Read more )
( Read more )