Mouth breathing is a stress response, which will signal to your body that there is an emergency. Stress hormones will result. A slow deep breath in and out through your nose will engage your “rest and restore” parasympathetic nervous system almost instantly.
An optimal vitamin D level should read between 40-80 ng/ml. People with optimal levels have half the cancer risk than those whose levels are lower than this! You can even order a test kit to do at home— and read all the vitamin D research at www.grassrootshealth.net.