Ashwagandha, a sub-tropical medicinal plant has been extensively used in Indian traditional home medicine system i.e. called “Ayurveda” for its stress-, hypertension-, aging-, neurological dysfunction- and malignant growth-inhibitory properties.
Rif: Chengappa, KN Roy, et al. “The Potential Utility of Ashwagandha for Improving Cognitive Dysfunction in Persons with Bipolar or Other Neurocognitive Disorders.” Science of Ashwagandha: Preventive and Therapeutic Potentials. Springer, Cham, 2017. 345-371.