A 5-minute promotional video, prepared by the authors, has been posted on the Journal of Biological Rhythms website, to showcase the paper “Mathematical analysis of light-sensitivity related challenges in assessment of the intrinsic period of the human circadian pacemaker“. The authors are Imran Usmani, Derk-Jan Dijk, and Anne Skeldon. The paper was a result of work in Imran Usmani’s PhD thesis and Imran is the lead author. The authors prepared a short “explainer” video as well as some additional discussion questions, both of which can be found on the journal home page. This is the first such video JBR have posted. A link to the paper is here and a link to the page with the video is here. Click on the “Videos” link to bring up the video (as shown in the screenshot below).