Circadian Rhythm Research Jet lag is caused when someone travels across several Time Zones quickly, as in a jet. Ongoing research into circadian rhythm and the biological clock has produced much that is new over the past four years. This book by Lynne Lamberg and Michael Smolensky explains the use of time in caring for and healing the body. This new branch of medicine is called chronotherapy. For humans, the desire to sleep is strongest between midnight and six a.m.
Many people are alert in the morning, with a natural dip in alertness in the mid-afternoon.
Try the quia. This is the web site of Dr. Refinetti's Circadian Rhythm Laboratory. Its goal is to disseminate information about the activities of the lab. The major component of these activities is experimental research on biological rhythms and thermal physiology. Read about our Tranquili-G, Solar Water, 4Sleep and Sublimiss products.