1.0Probably Overthinking Ithttps://www.allendowney.com/blogAllenDowneyhttps://www.allendowney.com/blog/author/allendowney_6dbrc4/rich600338<blockquote class="wp-embedded-content" data-secret="B4vfldHWE0"><a href="https://www.allendowney.com/blog/2018/12/06/august-causes-adhd/">August causes ADHD</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://www.allendowney.com/blog/2018/12/06/august-causes-adhd/embed/#?secret=B4vfldHWE0" width="600" height="338" title="“August causes ADHD” — Probably Overthinking It" data-secret="B4vfldHWE0" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script type="text/javascript"> /* <![CDATA[ */ /*! This file is auto-generated */ !function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document); //# sourceURL=https://www.allendowney.com/blog/wp-includes/js/wp-embed.min.js /* ]]> */ </script> A recent paper in the New England Journal of Medicine, Attention Deficit–Hyperactivity Disorder and Month of School Enrollment, compares diagnosis rates for ADHD for children born in August and children born in September.   In states that have a September 1 cutoff for children to start school, students born in September are generally the oldest in their class, and children born in August the youngest. And it turns out that children born in August are about 30% more likely to be... Read More Read Morehttps://www.allendowney.com/blog/wp-content/uploads/2019/01/Screenshot-at-2019-01-31-16-39-31.png