Coleen McClung PHD is a nationally known researcher of Circadian Rhythms. She is funded by the NIMIH/NIDA/prominent Research Foundations. This Podcast focuses on these rhythms, present in all body/animal cells including humans. They are essential for life. Such rhythms may be altered in psychiatric disorders, e.g. Bi-Polar disorder, or other serious bodily diseases such as Cancer. These rhythms, natural and disordered, offer new approaches for effective treatment. Each of these issues is discussed.