These Techniques Facilitate a VIBRANT Immune System How can we focus our energies toward finding calm in a world filled with fear and anxiety? We can find a pathway to better health by optimizing what we are exposed to, and how we spend our time. Health advocate Katrine Volynsky discusses research on the connection between the parasympathetic nervous system (rest and digest) and boosting our immune response. She shares tips like avoiding artificial blue light and getting more positive exposure to full spectrum sunlight.