Recently the Institute of Medical Sciences at the Banaras Hindu University looked into the nutrient impact of Ayurvedic rasayana therapy on brain aging. The review found scientific studies that suggest rasayanas using such herbs as ashwagandha and gotu kola (brahmi) could possibly retard brain aging and regenerate neural tissue.¹⁸ Preliminary studies suggest that turmeric may be useful in preventing or treating Alzheimer’s disease.^20-21 In vivo animal studies assessing the potential of gotu kola for enhancing memory found that the herb improved both learning and recall in the mice.¹⁹ This included reversal of amnesia caused by the natural process of aging and drug-induced memory loss.¹⁹