I have a few questions about how the three are related:

1) Is melatonin produced by the pineal gland? Also, is DMT (Dimethyltryptamine) produced by the pineal gland?

2) Does Marijuana increase, decrease, or have any effect on melatonin production in the short-term and long-term? Does Marijuana affect the pineal gland in any way?

3) I have also heard a conspiracy theory that certain government put fluoride in water supplies because fluoride supposedly affects the pineal gland in some way as to make it less sensitive to DMT. HYPOTHETICALLY SPEAKING, if there were fluoride in our water supply or our pineal gland was affected in some way by this, would it also change melatonin production and possibly interfere with sleep patterns?

This is not for school, just curiousity. I apologize for all the questions and 10 pts to the best answer.