tag:blogger.com,1999:blog-3734925856292601239.post6986785170188426174..comments2024-03-22T15:55:34.030-04:00Comments on Evo and Proud: Predictions for 2010Peter Frosthttp://www.blogger.com/profile/04303172060029254340noreply@blogger.comBlogger8125tag:blogger.com,1999:blog-3734925856292601239.post-58040790911738895592013-11-10T14:46:21.630-05:002013-11-10T14:46:21.630-05:00Here is an argument against sexual selection being...Here is an argument against sexual selection being the reason for lighter skin...<br /><br />http://scienceblogs.com/gnxp/2007/07/08/skin-color-vitamin-d-1/<br /><br />There is another one - natural selection wrt protection against folic-acid depletion<br />Dark skin is a protective factor for folic-acid levels. It was an article in the scientitific american a couple of years agoAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-3734925856292601239.post-9205049494178707642010-02-25T19:18:18.554-05:002010-02-25T19:18:18.554-05:00Survival group against God?? LOL. Good luck with t...Survival group against God?? LOL. Good luck with that. Truth is, no one knows the exact time this will happen except the man upstairs, however, I firmly believe that there are people placed here by God that post the warning signs and it's up to you to take heed.<br />[url=http://2012earth.net/astronomical_picture.html<br />]planet nibiru 2012<br /> [/url] - some truth about 2012Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-3734925856292601239.post-20056008844336671592010-02-05T06:38:50.423-05:002010-02-05T06:38:50.423-05:00"did you know that very recently it was found...<i>"did you know that very recently it was found in Austria that 25(OH)D levels correlate very well with serum testosterone"</i><br /><br />Does the behavior of young black men in Finland suggest they are suffering from a lack of testosterone?<br /><br /><a href="http://4.bp.blogspot.com/_tMgToYs_oYc/S2X7nnX-wtI/AAAAAAAAAFI/a9vz8P37e8Y/s1600-h/Tuohimaa+_etal_2009_F01.JPG" rel="nofollow">High Vitamin D</a>Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-3734925856292601239.post-42911299380390647262010-01-19T20:20:14.339-05:002010-01-19T20:20:14.339-05:00It seems that every researcher regardless of their...It seems that every researcher regardless of their background is trying to get a piece of the Vitamin D cake. :-)<br /><br />Several short term interventional studies so far have been stellar (see Hollis's brand new study!) and it's very possible that the Nobel Price will be going to some Vit D researcher(s) in the future. Pubmed is flooding new research every month and we WILL have the answers, sooner or later.<br /><br />Children with rickets (and low D levels) seem to be incredibly prone to respiratory infections and that may explain a bulk of skin hypothesis.<br /><br />Tuohimaa's suggested optimal 25(OH)D (calcidiol) range may be rising, since his group has recently reported that calcidiol seems to be agonistic of VDR like calcitriol is. There might be some kind of compensatory mechanism.<br /><br />On the other hand, Vieth (2009) seems to propose that seasonally stable 25(OH)D levels may be as important than getting the levels up to very often suggested 75-110 nmol/l.<br /><br />Dr Frost, did you know that very recently it was found in Austria that 25(OH)D levels correlate very well with serum testosterone ? How would you possibly imlement that in your sexual selection theory, if this will be proven to be causal ? <br /><br />I think it will, because a few prostate cancer studies (like Tuohimaa et al.), lots of sports performance studies with UVB radiation and mental outlook trials clearly suggest so.<br /><br />I don't mean to bemean in any way with these comments - I just think it will be interesting what may be found out on interracial differences on D3 metabolism and even different functional Vit D forms that may not be present when D3 solely is supplemented.Neonomidehttps://www.blogger.com/profile/00961709424324961929noreply@blogger.comtag:blogger.com,1999:blog-3734925856292601239.post-8213549442330267332010-01-13T07:45:19.998-05:002010-01-13T07:45:19.998-05:00Introduction of oral vitamin D supplementation and...<a href="http://www.aacijournal.com/content/pdf/1710-1492-5-8.pdf" rel="nofollow">Introduction of oral vitamin D supplementation and the rise of the allergy Pandemic </a>.Published: 19 November 2009 Allergy, Asthma & Clinical Immunology 2009, 5:8<br /><br />In a <a href="http://www.aacijournal.com/content/5/1/8/comments#384657" rel="nofollow">comment</a> on this study it is stated "The contention that vitamin D deficiency causes rickets has been weakened by several recent studies that attribute development of the condition to hypophosphatemia.[6] Nigerian children with rickets have been cured by administration of calcium alone.[7] Bouillon et al. found that VDR null mice administered diets high in calcium and phosphorous did not develop rickets." (<a href="http://pediatrics.aappublications.org/cgi/reprint/119/Supplement_2/S141.pdf" rel="nofollow">Bouillon et al</a>).Todnoreply@blogger.comtag:blogger.com,1999:blog-3734925856292601239.post-10493819051725831842010-01-08T17:04:05.551-05:002010-01-08T17:04:05.551-05:00Not to be pessimistic Peter, but your theory of se...Not to be pessimistic Peter, but your theory of sexual selection is not getting much publicity.<br />I don't get it, anybody can just look at Tiger's Wood affairs to understand what is 'sexual selection'.<br />Tiger's explanation: "I am exclusively looking for women with high VitD level..."Ben10noreply@blogger.comtag:blogger.com,1999:blog-3734925856292601239.post-22584226660229911072010-01-08T13:48:01.901-05:002010-01-08T13:48:01.901-05:00Dear Anon,
Correlation isn't causation. Middl...Dear Anon,<br /><br />Correlation isn't causation. Middle-class African Americans generally have better health outcomes than do lower-class African Americans (as is the case with any population). They also have a higher degree of white admixture (for various historical reasons) and thus have a vitamin-D metabolism closer to that of Euro-Americans. Together, these two factors would generate the apparent correlation between vitamin-D level and cardiac death risk among African Americans.<br /><br />This is a general problem with the data put forward by vitamin-D enthusiasts: most of it is poorly controlled for ethnic/racial background, not to mention many other confounding variables. <br /><br />It is important to control for ethnic/racial background because we know that many if not most darker-skinned populations have lower levels of vitamin D, even those that live in the tropical zone and are highly exposed to UVB. African Americans do not have lower vitamin D levels because they have dark skin and no longer live in the tropics. It's because their metabolism has adapted to a lower range of vitamin-D levels. Raising these levels artificially will probably do more good than harm.Peter Frostnoreply@blogger.comtag:blogger.com,1999:blog-3734925856292601239.post-54211127065663312472010-01-07T16:08:16.713-05:002010-01-07T16:08:16.713-05:00http://www.sciencedaily.com/releases/2010/01/10010...http://www.sciencedaily.com/releases/2010/01/100105170924.htmAnonymousnoreply@blogger.com