I received this link from an associate of mine. It smells like pseudo-scientific bull to me, but there are a LOT of claims made in the article that I can't really debunk all by myself.
To quote from near the top of the online article:
Studies show that pineal gland calcification:
Lowers productions of melatonin
Impairs the sleep-wake cycle
Disrupts the regulation of the circadian rhythm
Are these claims true? If so to what extent?
EDIT: Updated the title to better reflect what the question should have been in the first place. According to the comments below Fluoride can also affect calcification, so ideally answers would take Fluoride and Calcium build up into account.