Early riser or late sleeper? Hair can tell

Aug 25, 2010 |

Washington

Are you an early riser or do you prefer waking up when the sun is overhead? Your hair may be an indicator — says a new study.
According to National Geographic News, that’s because the genes that regulate our body clocks can be found in hair-follicle cells, researchers have discovered.

Makoto Akashi, of the Research Institute for Time Studies at Yamaguchi University in Japan, and colleagues conducted the study on hair samples of four subjects who followed a strict schedule as per their preferences — waking up early or late and eating, among other lifestyle choices.
When the researchers tested the genes in the subjects’ follicles, they found that body-clock gene activity peaked right after a subject had woken up, be it 6 am or 10 am.
This indicates that the brain “turns on” the genes at different times of the morning in different people. —ANI

Post new comment

<form action="/comment/reply/29686" accept-charset="UTF-8" method="post" id="comment-form"> <div><div class="form-item" id="edit-name-wrapper"> <label for="edit-name">Your name: <span class="form-required" title="This field is required.">*</span></label> <input type="text" maxlength="60" name="name" id="edit-name" size="30" value="Reader" class="form-text required" /> </div> <div class="form-item" id="edit-mail-wrapper"> <label for="edit-mail">E-Mail Address: <span class="form-required" title="This field is required.">*</span></label> <input type="text" maxlength="64" name="mail" id="edit-mail" size="30" value="" class="form-text required" /> <div class="description">The content of this field is kept private and will not be shown publicly.</div> </div> <div class="form-item" id="edit-comment-wrapper"> <label for="edit-comment">Comment: <span class="form-required" title="This field is required.">*</span></label> <textarea cols="60" rows="15" name="comment" id="edit-comment" class="form-textarea resizable required"></textarea> </div> <fieldset class=" collapsible collapsed"><legend>Input format</legend><div class="form-item" id="edit-format-1-wrapper"> <label class="option" for="edit-format-1"><input type="radio" id="edit-format-1" name="format" value="1" class="form-radio" /> Filtered HTML</label> <div class="description"><ul class="tips"><li>Web page addresses and e-mail addresses turn into links automatically.</li><li>Allowed HTML tags: <a> <em> <strong> <cite> <code> <ul> <ol> <li> <dl> <dt> <dd></li><li>Lines and paragraphs break automatically.</li></ul></div> </div> <div class="form-item" id="edit-format-2-wrapper"> <label class="option" for="edit-format-2"><input type="radio" id="edit-format-2" name="format" value="2" checked="checked" class="form-radio" /> Full HTML</label> <div class="description"><ul class="tips"><li>Web page addresses and e-mail addresses turn into links automatically.</li><li>Lines and paragraphs break automatically.</li></ul></div> </div> </fieldset> <input type="hidden" name="form_build_id" id="form-e060ae5ab4b6f990db3bda3b0b35d370" value="form-e060ae5ab4b6f990db3bda3b0b35d370" /> <input type="hidden" name="form_id" id="edit-comment-form" value="comment_form" /> <fieldset class="captcha"><legend>CAPTCHA</legend><div class="description">This question is for testing whether you are a human visitor and to prevent automated spam submissions.</div><input type="hidden" name="captcha_sid" id="edit-captcha-sid" value="86782846" /> <input type="hidden" name="captcha_response" id="edit-captcha-response" value="NLPCaptcha" /> <div class="form-item"> <div id="nlpcaptcha_ajax_api_container"><script type="text/javascript"> var NLPOptions = {key:'c4823cf77a2526b0fba265e2af75c1b5'};</script><script type="text/javascript" src="http://call.nlpcaptcha.in/js/captcha.js" ></script></div> </div> </fieldset> <span class="btn-left"><span class="btn-right"><input type="submit" name="op" id="edit-submit" value="Save" class="form-submit" /></span></span> </div></form>