Globally the burden of brain disorders continues to increase. As populations are growing a Claims that chiropractic adjustments influence immune system function have received newfound scrutiny in light of the COVID-19 epidemic. Politics and philosophy aside, what does the research actually tell us about the chiropractic adjustment and immunity? This course is a no-spin, no-nonsense look at what is known about this topic, and what questions we need to ask ourselves as a professional community to responsibly contribute to this conversation. nd aging the prevalence of major disabling brain disorders steeply increase with age.