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<oembed><version>1.0</version><provider_name>Josh Mitteldorf</provider_name><provider_url>https://scienceblog.com/joshmitteldorf</provider_url><author_name>Josh Mitteldorf</author_name><author_url>https://scienceblog.com/joshmitteldorf/author/joshmitteldorf/</author_url><title>Halting Thymic Involution</title><type>rich</type><width>600</width><height>338</height><html>&lt;blockquote class="wp-embedded-content" data-secret="GrZHfxS3d4"&gt;&lt;a href="https://scienceblog.com/joshmitteldorf/2013/03/03/halting-thymic-involution/"&gt;Halting Thymic Involution&lt;/a&gt;&lt;/blockquote&gt;&lt;iframe sandbox="allow-scripts" security="restricted" src="https://scienceblog.com/joshmitteldorf/2013/03/03/halting-thymic-involution/embed/#?secret=GrZHfxS3d4" width="600" height="338" title="&#x201C;Halting Thymic Involution&#x201D; &#x2014; Josh Mitteldorf" data-secret="GrZHfxS3d4" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"&gt;&lt;/iframe&gt;&lt;script&gt;
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</html><description>The thymus is a thumb-sized organ just above the sternum where our immune cells are trained to recognize self from other. It is fully developed by the time we are 10 years old, but after that it begins gradually to shrink. By age 25, it has already lost 30% of its mass, and by age ... Read more</description></oembed>
