Reflexology is a non-intrusive and highly relaxing health therapy. Its aim is to help the body to heal itself and to maintain a balanced state of health. Much like acupuncture, reflexology is not based on pure scientific fact, but rather thousands of years of trial and error, patterns and an elaborate mapping of the energies of the body. There is evidence that reflexology was developed as early as 4,000BC in China, where its use remains widespread (schoolchildren in Beijing are taught to do it on each other). Foot therapy was practised by Native American tribes, and in Ancient Egypt. Though it is still a somewhat controversial practice, its reported benefits range from stress relief and relaxation to increased blood circulation.