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Entries by tag: cortisol

First time I've heard of IgD: 11/26/14. From Dr D'Adamo. =-]

QUICK REFERENCE RANDOM ASSOCIATIONS IN semi-ALPHABETICAL ORDER
This list is brought forward and updated with new information.Collapse )
The gist of the new finding by Dr Schor is that many hypothyroid patients may be missed because up to now nobody has realized that TSH levels fluctate on a pattern not much different from cortisol. This is no surprise to me since I have already learned that when we awaken naturally in the morning, it coincides with an increase on our body temperature, whereas when we fall to sleep, our bodies cool down. Thyroid hormone is a heater upper; without it you are cold. Based on what I know of the release patterns of TSH (thyroid stimulating hormone), CRH (cortisol releasing hormone), and GH (growth hormone), I am going to assume that all hypothalamic hormones follow a diurnal rhythm, and that it is possible that they might all pulse in the pre-dawn hours and decrease in the afternoon.
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The Testosterone Index

Market traders make more money on days when their morning testosterone is higher. A great article entitled "What Traders’ Testosterone Tells Us About Markets" explains the details, or you can scan my notes behind the cut.

Market participants aren’t the rational automatons of most financial theory. They are biological organisms responding with a neural and physiological apparatus designed millions of years ago. If what happens in markets affects hormones, these in turn alter behavior and feed back into the markets.

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http://www.ted.com/talks/richard_wilkinson.html

This is the latest Ted Talk to cross my viewscreen.  It's Richard Wilkinson, speaking about the differences between societies with wide vs narrow differences between the highest and lowest income groups.  The finding is intuitive, but the specific data that he pulls together, and the way he makes sense of it, is very interesting.  At the end of brings it all together with some science about stress.  According to him, the stressors that cause the greatest increase in cortisol are "social evaluative threats" to one's esteem or status.  In other words, "people are sensitive to being looked down on".  In societies where there is greater equality, there is less stress, hence explaining the increased longevity, health and peace that is seen in those societies.  Of course, the US rates only second to Singapore in his scaling of wealth disparity, with Japan and Sweden at the other end of the scale.  Anyway, it's worth seeing for yourself, if you have the 15 minutes.

A new study shows that testosterone is more increased after the match in the winners. The sample was an "elite collegiate wrestling team". So both winners and losers experience an increase, it's just a bigger increase in the winners. The article refers to an acute testosterone response that I know nothing about, but I have ideas. Cortisol and epinephrine did not significantly differ between winners and losers.

This effect of winning reminds me of a report I heard on NPR this morning about Obama's new slogan: Win the Future. I agree, as they said, that "it's got teeth". There's a lot of unpacking to do in that slogan. And collectively, we may increase our testosterone yet.

SOURCES

http://timesofindia.indiatimes.com/life-style/health-fitness/fitness/Winners-have-higher-testosterone-levels/articleshow/7366420.cms

http://www.npr.org/2011/01/29/133311906/will-win-the-future-be-a-winner-for-obama
notes from an article in the Boston Globe by Emily Anthes
Inside the bullied brain; The alarming neuroscience of taunting
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Biochemistry 202: Tryptophan and 5HTP

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