The secret life of your body clock  [videorecording] 

 - Frenchs Forest, NSW :  BBC Active,  2006. 
 - 1 videodisc (ca. 52 min.) :  sd., col. ;  4 3/4 in. 
<br/><br/> "Bring your classroom to life" --Container.  Originally broadcast as a segment of the television program: Horizon. 
<br/><br/> Ticking away inside the human body are the timepieces that govern our daily and seasonal lives. This program shows how these biological clocks dictate physiological behavior-determining when our brains are most alert, when our stomachs are ready to break down food, and when our bodies want to sleep. Viewers learn why most babies are born in the early morning, why most teenagers want to sleep until noon, why most heart attacks occur between 8 and 10 am, and why most Olympic records are broken late in the day. 
<br/><br/><br/>DVD. 
<br/><br/><br/>Closed captioned. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biological rhythms.<br/>Circadian rhythms.<br/>Chronobiology.
<br/><br/><label>Dewey Class. No.: </label>612.022  / SEC 2006