Ashwgandha (means the plant roots when harvested fresh smell
like ashwa or horse ) ( Withania sominfera ) roots are given in dried and powdered form as capsule , powder etc and its is supposed to delay degenration of neurons. It prevents from dimentia old age memory loss and provides vitality.
NAGORI ashwaganda is famous for its efficacy in comparison to other ashwagandha
However there is need to undertake clinical trials on this plant.