Final answer:
Network Spinal Analysis was founded by Donald Epstein in the early 1980s, focusing on the relationship between the spine, nervous system, and overall wellness.
Step-by-step explanation:
Network Spinal Analysis (NSA), also known as Network Spinal or Network Chiropractic, is a form of chiropractic care that focuses on wellness and the relationship between the spine, the nervous system, and the individual's health and life experience. This approach was founded by Donald Epstein. Network Spinal Analysis utilizes specific low-force touches to the spine that are believed to cue the brain to create new wellness promoting strategies. Donald Epstein developed this technique in the early 1980s and it has since gained worldwide recognition within the field of alternative and holistic medicine.