Siddha and ayurvedic therapies including Abyangam,navarakizhi, podi thimiral, shirodhara and shiropichu helps immensely managing and helping many key symptoms of Autism. All these external therapies plays a huge role in detoxification, nourishment and sensory integration. Dr. Kazuo Uebaba, associate superintendent of the International Traditional Medicine Research Center of Toyama prefecture in his study found Physiological changes during shirodhara were similar to those of meditation, including α-wave dominance in the frontal area and a decrease in heart rate and CO2 excretion.