<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>Brybry</author><text>When it&amp;#x27;s very hot fans actually make you hotter[1][2] though the science isn&amp;#x27;t yet settled on what exact conditions fans are not appropriate for[3].&lt;p&gt;[1] &lt;a href=&quot;https:&amp;#x2F;&amp;#x2F;www.health.ny.gov&amp;#x2F;publications&amp;#x2F;6594&amp;#x2F;&quot; rel=&quot;nofollow&quot;&gt;https:&amp;#x2F;&amp;#x2F;www.health.ny.gov&amp;#x2F;publications&amp;#x2F;6594&amp;#x2F;&lt;/a&gt;&lt;p&gt;[2] &lt;a href=&quot;https:&amp;#x2F;&amp;#x2F;www.cdc.gov&amp;#x2F;disasters&amp;#x2F;extremeheat&amp;#x2F;faq.html&quot; rel=&quot;nofollow&quot;&gt;https:&amp;#x2F;&amp;#x2F;www.cdc.gov&amp;#x2F;disasters&amp;#x2F;extremeheat&amp;#x2F;faq.html&lt;/a&gt;&lt;p&gt;[3] &lt;a href=&quot;https:&amp;#x2F;&amp;#x2F;sci-hub.st&amp;#x2F;https:&amp;#x2F;&amp;#x2F;pubmed.ncbi.nlm.nih.gov&amp;#x2F;31382270&amp;#x2F;&quot; rel=&quot;nofollow&quot;&gt;https:&amp;#x2F;&amp;#x2F;sci-hub.st&amp;#x2F;https:&amp;#x2F;&amp;#x2F;pubmed.ncbi.nlm.nih.gov&amp;#x2F;31382270&amp;#x2F;&lt;/a&gt;</text><parent_chain><item><author>FooBarWidget</author><text>Just having a regular fan helps a lot. Very little energy usage, very cheap. I bought a new fan a few weeks ago, one that is nearly soundless in its lowest setting. Even the slight breeze made by the lowest setting already makes a huge difference compared to stale hot air. It also uses an order of magnitude less energy than an A&amp;#x2F;C, and costs an order of magnitude less to purchase+install (100 EUR vs 3000 EUR).</text></item><item><author>dsq</author><text>I definitely sleep less well in the hot, humid, summer than in winter. When it&amp;#x27;s cold you can add layers. When it&amp;#x27;s hot you reach a limit of zero layers of clothing&amp;#x2F;coverings and then have to move the heat and humidity elsewhere artificially via A&amp;#x2F;C.
I also think (this is my subjective opinion, I have no proof) that cold reduces swelling and inflammation,  thus making for easier breathing during sleep.</text></item></parent_chain></comment><story><title>Rising temperatures erode human sleep globally</title><url>https://www.cell.com/one-earth/fulltext/S2590-3322(22)00209-3</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>eru</author><text>If you live in a place like London, where it gets hot in summer but many places still don&amp;#x27;t have A&amp;#x2F;C, a fan can work wonders.&lt;p&gt;Here&amp;#x27;s the magic trick to cool your home down quickly:&lt;p&gt;During the day your house heats up.  In the evening your home is likely warmer than the night air.  Many people try to open the window and put the fan close to the window to blow cold air in.&lt;p&gt;What works much better is pointing the fan out of the window!</text><parent_chain><item><author>FooBarWidget</author><text>Just having a regular fan helps a lot. Very little energy usage, very cheap. I bought a new fan a few weeks ago, one that is nearly soundless in its lowest setting. Even the slight breeze made by the lowest setting already makes a huge difference compared to stale hot air. It also uses an order of magnitude less energy than an A&amp;#x2F;C, and costs an order of magnitude less to purchase+install (100 EUR vs 3000 EUR).</text></item><item><author>dsq</author><text>I definitely sleep less well in the hot, humid, summer than in winter. When it&amp;#x27;s cold you can add layers. When it&amp;#x27;s hot you reach a limit of zero layers of clothing&amp;#x2F;coverings and then have to move the heat and humidity elsewhere artificially via A&amp;#x2F;C.
I also think (this is my subjective opinion, I have no proof) that cold reduces swelling and inflammation,  thus making for easier breathing during sleep.</text></item></parent_chain></comment><story><title>Rising temperatures erode human sleep globally</title><url>https://www.cell.com/one-earth/fulltext/S2590-3322(22)00209-3</url></story>