It is okay to wear yoga socks while practicing if that's what's needed to be able to relax into the flow. To help regulate your temperature, he recommends that you warm up the room a little bit prior to practice by turning up the heat and then turning off the heat while you practice so that the heat is not blowing on you. Dress appropriately for your needs, it's okay to wear layers.
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Please note that this material is for educational purposes and is not intended to replace the advice, diagnosis, or treatments of your physician or healthcare practitioner. We encourage you to seek advice from your medical professional or physician regarding the applicability of the suggested practices above.