How does Ayurveda interpret this?
It never says menstrual blood is impure or dirty. Moreover it says that normal menstrual blood (if not in a diseased condition) is pure and clean and doesn't leave a stain after washing.
Then what are the main restrictions and why?
1. Bathing : Menstruation is flowing due to Vata and the blood is Pitta predominant making it hot. A bath will interfere with this as it reduces the flow by the stambhana (stopping/freezing) property. Bathing, which is cooling, acts against Pitta too and interferes with the bleeding.
2. Rest : Women have been advised to take rest. This is not only a well deserved rest every month. Any activity during this period will derange the Apana Vata. This might lead to either excess, reduced or painful periods.
This is the Ayurvedic outlook towards menstruation. It is not linked to any dominance or suppression. It's pure health.
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