<instructions>Your goal is to analyze the following comment and estimate how highly it will be upvoted by the Hacker News community.</instructions><comment><author>clumsysmurf</author><text>Related, there is the possibility that posture during sleep may impact the efficiency of the glymphatic system&lt;p&gt;Paper: &lt;a href=&quot;http:&amp;#x2F;&amp;#x2F;www.ncbi.nlm.nih.gov&amp;#x2F;pmc&amp;#x2F;articles&amp;#x2F;PMC4524974&amp;#x2F;&quot; rel=&quot;nofollow&quot;&gt;http:&amp;#x2F;&amp;#x2F;www.ncbi.nlm.nih.gov&amp;#x2F;pmc&amp;#x2F;articles&amp;#x2F;PMC4524974&amp;#x2F;&lt;/a&gt;&lt;p&gt;Press release: &lt;a href=&quot;http:&amp;#x2F;&amp;#x2F;sb.cc.stonybrook.edu&amp;#x2F;news&amp;#x2F;general&amp;#x2F;150804sleeping.php&quot; rel=&quot;nofollow&quot;&gt;http:&amp;#x2F;&amp;#x2F;sb.cc.stonybrook.edu&amp;#x2F;news&amp;#x2F;general&amp;#x2F;150804sleeping.php&lt;/a&gt;</text><parent_chain></parent_chain></comment><story><title>Brain may flush out toxins during sleep (2015)</title><url>http://qz.com/424120/our-poor-sleeping-habits-could-be-filling-our-brains-with-neurotoxins</url></story>
<instructions>Your goal is to analyze the following comment and estimate how highly it will be upvoted by the Hacker News community.</instructions><comment><author>singold</author><text>&amp;quot;warns that sleeping next to your smartphone—the one that emits 3G and 4G signals all night—affects your brain patterns, restructuring your brain cells and likely preventing you from allowing your brain to clean out waste material properly.&amp;quot;&lt;p&gt;Does anyone have any kind of evidence&amp;#x2F;study of this kind of effects?</text><parent_chain></parent_chain></comment><story><title>Brain may flush out toxins during sleep (2015)</title><url>http://qz.com/424120/our-poor-sleeping-habits-could-be-filling-our-brains-with-neurotoxins</url></story>