Even though various research studies related with Yoga are important in their own way, serious yoga aspirants some knowledge of medical research can feel that the work of fundamental nature (Phase-I) is lacking and it needs to be given its proper place before undertaking studies in relation to the clinical and other types of applications indicating Phase III and IV studies. It may turn out that these studies are based on weak foundations of traditional Yogic concepts and doctrines based on

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... iencing the person by the person rather than making objective observations. Usually, the control group is not given a comparable 'intervention' of 'non-yogic type'. In medical studies, placebo resembles the intervention without the active principle. 'No activity' cannot be treated as 'placebo' for 'Yoga Intervention'.