Is it a bird? Is it a plane?! Unfortunately, it most likely won’t be Superman. And, chances are, it’s not the Twister either.

Consumer behavior—or how people buy and use goods and services—is a rich field of psychological research, particularly for companies trying to sell products to as many potential customers as possible.

Arno Kroner, DAOM, LAc, operates a private practice in Santa Monica where he specializes in acupuncture, herbal medicine, and integrative medicine. Losing weight can reduce arthritis pain by easing ...