I was reading this description of acupuncture straight from the horse’s mouth (acupuncture.com)
The ancient Chinese believed that there is a universal life energy called Chi or Qi present in every living creature. This energy is said to circulate throughout the body along specific pathways that are called meridians. As long as this energy flows freely throughout the meridians, health is maintained, but once the flow of energy is blocked, the system is disrupted and pain and illness occur. Imagine rivers that flood and cause disasters or an electrical grid short-circuiting that causes blackouts. Acupuncture works to re-program and restore normal functions by stimulating certain points on the meridians in order to free up the Chi energy.
Yeah, just as useful as the zodiac.