According to multiple 'spiritual' websites (like this one), there is a 29.5 cycle in the human body.
Every 29.5 Days, A Seed Is Born That Gifts You With An Opportunity For A Physiological & Spiritual Rebirth...
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Beginning around age 12, every month when the moon enters your Sun Sign (Vedic or True Sidereal), your claustrum (located in your cerebrum) acts like an antenna and picks up on the incoming frequencies from the Sun reflected by the moon.
These energetic frequencies initiate 2 processes:
A neurotransmitter is released from your claustrum that signals your pineal and pituitary glands to release their sacred secretions.[...] The sacred secretion from your claustrum is then differentiated into electric and magnetic portions by both glands and is referred to as the Christos Oil, or Chrism Oil.
An energetic seed, or psycho-somatic germ, is pulled from the vibrational frequencies flowing through your cerebrospinal fluid that keep you stuck in your reptilian brain (fight / flight / freeze) and locked out of your holy temple body and divine mind.
Does this have a scientific basis?
Update I found that the human body might react to the lunar cycle in some way. In this study, menstruation was linked to the new moon. Since the lunar cycle is 29.5 days, that could be related to this question.