Here is a great presentation about the effects of light at night and melatonin deficiency by Russel J. Reiter, Ph.D., University of Texas Health Science Center.

Here is a great presentation about the effects of light at night and melatonin deficiency by Russel J. Reiter, Ph.D., University of Texas Health Science Center. https://www.youtube.com/watch?v=I7YIRqTNmuY https://www.youtube.com/watch?v=I7YIRqTNmuY