Both feet on the padded part of the big toe slightly towards the next toe. Exposure to sunlight and geomagnetic fields. Enlargement of the Pineal can pinch off the canal that circulates fluid running from the brain to the spinal cord. Usually occurs in the winter. Children acting backward.
Light reflected by the retina stimulates the pineal gland.
I know from personal experience that animal hormones do not act exactly as a human hormone. You start labor but it is different than the labor that your own body would induce. Another concern that I have is the fact that when you work for a body par, it becomes even lazier, such as laxatives for the bowel or synthroid for the thyroid. I believe there has to be a way to support the pineal to help it in its own production of melatonin. I would only suggest melatonin if symptoms of a weak pineal are unbearable and nutrition has not seemed to help.