Normal household light could suppress melatonin release by 50% and higher light intensities could delay release times up to two hours. http://ow.ly/h8JR50uCvMJ
EPILEPSY. It is conceivable that resetting the circadian rhythms in epileptic conditions by inducing changes in the molecular rhythms could be a co-adjuvant therapy in the management of epilepsy. This approach has been successful in treating individuals having disordered wake/sleep cycles from jet-lag or night-shift work, or with other conditions such as hypertension, immune disorders, mood dysfunction, and aging.