The following research study appeared in the Indian Journal of Medical Research 131, May 2010, p 636-640
Tenzin Kyizom, Savita Singh, K.P. Singh, O.P. Tandon & Rahul Kumar
“Background & objectives: Electrophysiological evidence of delayed cognition as measured by P300, an evoked potential is observed in Diabetes mellitus. P300 (or P3) is a component of endogenous cerebral evoked response that assesses higher functions of the brain. Our study aims to see the role of pranayama and yoga-asana on P300 latency and amplitude in type 2 diabetic patients.”
“Results: Statistically significant improvement in the latency and the amplitude of N200, P300 was observed in the yoga group as compared to the control group.”
“Interpretation & conclusions: Our data suggest that yoga has a beneficial effect on P300 and thus can be incorporated along with the conventional medical therapy for improving cognitive brain functions in diabetes.”
The study also found a significant reduction in hyperglycemia and a decrease in the drugs usage when yoga therapy was incorporated. The study lists the simple asanas and pranayamas that were used in the study.
We suggest reading the whole study.
Mahasri Yoga 
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