If acupuncture seems like something better performed on voodoo dolls, you may not be aware of the practice’s long historical tradition, and its more recent embrace by mainstream medicine. This week on “Take Care,” Dr. Pina LoGiudice, a physician with training in naturopathic medicine and acupuncture, discusses how acupuncture works, and what it is used of. LoGiudice was also a pre-doctoral fellow at the National Institutes of Health.