Alternative medicine refers to practices that are claimed to have healing properties but are not scientifically proven. It includes practices like homeopathy, acupuncture, naturopathy, traditional Chinese medicine, Ayurvedic medicine, and others. These practices are based on cultural traditions, beliefs about supernatural energies, or pseudoscience rather than evidence from scientific research. Examples of alternative medicine types discussed include herbalism, body manipulation techniques, energy therapies that believe in concepts like biofields, and faith-based healing practices.