Ṛtu Viḍyā: Ancient Science behind Menstrual Practices

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"The book Ṛtu Vidyā emerged in search of answers to questions asked by adolescent girls and women in India during the author's interactions with them as part of Menstrual Health workshops, conducted over a span of a decade across rural India. In an attempt to decode menstrual practices, the author undertook a journey across India and studied various indigenous knowledge systems such as Ṣaḍ-Darśana, Āyurved, Tantra, Cakra, Yōg, Āgama Śāstra, Jyotiṣa Śāstra, and several sub-texts from these categories. As a result, the book goes beyond just describing cultural practices and takes a deep dive into explaining the scientific and logical reasoning behind the origin of these practices." -- Amazon.com