<div dir="ltr"><div class="gmail_extra"><div class="gmail_quote">On Wed, Feb 12, 2014 at 9:59 AM, <span dir="ltr"><<a href="mailto:natasha@natasha.cc" target="_blank">natasha@natasha.cc</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div link="blue" vlink="purple" lang="EN-US"><div><p class="MsoNormal">With so many articles about aging these days, its cumbersome to find info without ads for a product to fight aging! Does anyone have updated science facts on the human body/brain as a whole that looks at:<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p><p><u></u><span>1.<span style="font:7pt "Times New Roman""> </span></span><u></u>When does the body starts aging (conflicting views suggest directly after puberty, others say 20-ish);<u></u><u></u></p>
<p><u></u><span>2.<span style="font:7pt "Times New Roman""> </span></span><u></u>When does the body start preparing for death (conflicting views, and some suggest after menopause and andropause); and<u></u><u></u></p>
<p><u></u><span>3.<span style="font:7pt "Times New Roman""> </span></span><u></u>If the body regenerates itself every seven years, how does this affect the aging process (most views reference limited ability to create daughter cells is the point of preparation for death) and if neurons in the cerebral cortex are never replaced, why is there a broad statement that the body regenerates itself every seven years?</p>
</div></div></blockquote><div>That broad statement is not accurate -- although it may not be a terrible approximation of the averages of widely varying turnover times. For instance, the cells lining the stomach last only five days, red blood cells 120 days or so, and the adult human liver 300 to 500 days, whereas other structures retain the same cells for decades, such as "the neurons of the cerebral cortex, the inner lens
cells of the eye and perhaps the muscle cells of the heart" (from the first link below).<br><br><a href="http://www.nytimes.com/2005/08/02/science/02cell.html?pagewanted=all&_r=0">http://www.nytimes.com/2005/08/02/science/02cell.html?pagewanted=all&_r=0</a><br>
<br></div><div><a href="http://askanaturalist.com/do-we-replace-our-cells-every-7-or-10-years/">http://askanaturalist.com/do-we-replace-our-cells-every-7-or-10-years/</a><br> <br><a href="http://www.timeshighereducation.co.uk/198208.article">http://www.timeshighereducation.co.uk/198208.article</a><br>
<br></div><div>MM<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div link="blue" vlink="purple" lang="EN-US"><div><p><u></u><u></u></p><p class="MsoNormal">
<u></u> <u></u></p><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal">Thanks,<u></u><u></u></p><p class="MsoNormal">Natasha<u></u><u></u></p></div></div><br>_______________________________________________<br>
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<br></blockquote></div><br><br clear="all"><br>-- <br><div>Max More, PhD</div><div>Strategic Philosopher</div><div>Co-editor, <i>The Transhumanist Reader</i></div><div><a href="http://www.amazon.com/Transhumanist-Reader-Contemporary-Technology-Philosophy/dp/1118334310/ref=sr_1_1?s=books&ie=UTF8&qid=1372225570&sr=1-1&keywords=the+transhumanist+reader" target="_blank">http://www.amazon.com/Transhumanist-Reader-Contemporary-Technology-Philosophy/dp/1118334310/ref=sr_1_1?s=books&ie=UTF8&qid=1372225570&sr=1-1&keywords=the+transhumanist+reader</a><br>
President & CEO, Alcor Life Extension Foundation</div>
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