tag:blogger.com,1999:blog-6395564333682113597.post6834886511088997424..comments2024-03-12T11:27:58.144+13:00Comments on Black Poison Soul: Going Backwards GeneticallyBlack Poison Soulhttp://www.blogger.com/profile/07378635809751908950noreply@blogger.comBlogger8125tag:blogger.com,1999:blog-6395564333682113597.post-7784198111037728792014-07-23T21:30:26.574+12:002014-07-23T21:30:26.574+12:00The most pressing problem with deteriorating eggs ...The most pressing problem with deteriorating eggs is their quality, not quantity. Mindstormhttps://www.blogger.com/profile/02949097462978386911noreply@blogger.comtag:blogger.com,1999:blog-6395564333682113597.post-75255424492278640392014-07-14T22:50:28.960+12:002014-07-14T22:50:28.960+12:00Under 28 years of age, 12.5% (1 in 8) of women are...Under 28 years of age, 12.5% (1 in 8) of women are infertile aka sterile. Mostly due to STDs that have no obvious effect - ie they don't know. I knew a girl who had it happen to her at age 12-13.<br /><br />Women start becoming clucky at age 30, the manifestation of their body going on to its last gasp of reproductive ability. Higher chances of genetic issues (Downs Syndrome for example).<br /><br />The chances of having a Down's syndrome baby increase with age. At 20, the risk is one in 1,529; at 25, one in 1,351; at 30, one in 910; at age 35, one in 384; at 40, one in 112; and at 45, one in 28. However, most Down's syndrome babies are born to women aged between 25 and 30, as statistically that is the average age when most babies are conceived. (Source: DailyMail.)<br /><br />Most women (95%) have used up 90% of their eggs by age 30. (Source: Telegraph Health.) This is why even IVF has problems "taking" with older age (stats elsewhere on this blog).<br /><br />These three tendencies are why I use the term "reproductive toast" in reference to women of 30+ years age. Anovulatory hassles would seem to make the situation worse than I expected.<br /><br />Half-sibling twins probably have occurred. I concur, a very screwed situation.Black Poison Soulhttps://www.blogger.com/profile/07378635809751908950noreply@blogger.comtag:blogger.com,1999:blog-6395564333682113597.post-64094932170930922602014-07-14T02:57:17.690+12:002014-07-14T02:57:17.690+12:00Have you ever wondered how screwed would be the po...Have you ever wondered how screwed would be the possible situation with half-sibling twins happening? With so many people on Earth, I'm sure that happened already. <br /><br />From the perspective of the mother, it's a godsend, if both fathers chip in. From the fathers'... a shortened life expectancy, one way or another. A waking nightmare.Mindstormhttps://www.blogger.com/profile/02949097462978386911noreply@blogger.comtag:blogger.com,1999:blog-6395564333682113597.post-73831444598045997492014-07-14T01:36:22.187+12:002014-07-14T01:36:22.187+12:00[...]in postmenarchal girls, about 80% of the cycl...[...]in postmenarchal girls, about 80% of the cycles are anovulatory in the first year after menarche, 50% in the third and 10% in the sixth year.[...]<br />So the final number is a little lowerMindstormhttps://www.blogger.com/profile/02949097462978386911noreply@blogger.comtag:blogger.com,1999:blog-6395564333682113597.post-44264757796492130122014-07-14T01:31:11.991+12:002014-07-14T01:31:11.991+12:00Some simple math:
An average menstrual cycle lasts...Some simple math:<br />An average menstrual cycle lasts 28 days. Between menarche at the age of 12-13 and the menopause at the age 45-55, how many released oocytes will be there? Assuming no pregnancies and no anovulatory cycles. Assuming no double ovulations as well (which happen sometimes - as dizygotic twins prove).<br />About 13 ovulations per year, for 32-43 years. The number is 489, average of 417 and 561.<br /><br />Not exactly "reproductive toast". Still, many risks <a href="http://en.wikipedia.org/wiki/Advanced_maternal_age#Effects" rel="nofollow">rise significantly</a> with maternal age. <br /><br />Internet is a wonderful thing, isn't it? Mindstormhttps://www.blogger.com/profile/02949097462978386911noreply@blogger.comtag:blogger.com,1999:blog-6395564333682113597.post-35010222881581522662014-07-12T23:43:38.849+12:002014-07-12T23:43:38.849+12:00Cheers to that thought.Cheers to <a href="http://www.posterhero.com/product-images/AMACAARQ-P49867.jpg" rel="nofollow">that thought</a>.Mindstormhttps://www.blogger.com/profile/02949097462978386911noreply@blogger.comtag:blogger.com,1999:blog-6395564333682113597.post-4629590763831100452014-07-12T06:55:31.927+12:002014-07-12T06:55:31.927+12:00I totally agree - and I'll add: "willing ...I totally agree - and I'll add: "willing victim" to that.Black Poison Soulhttps://www.blogger.com/profile/07378635809751908950noreply@blogger.comtag:blogger.com,1999:blog-6395564333682113597.post-19035042914432128562014-07-12T00:34:37.485+12:002014-07-12T00:34:37.485+12:00In one sentence:
"Humanity is a victim of its...In one sentence:<br />"Humanity is a victim of its own success", <br />attribution unknown.Mindstormhttps://www.blogger.com/profile/02949097462978386911noreply@blogger.com