गुदि जाउना इसकामिया (थै बोहैथाय खमायनाय) एबा मेलेमनि गोबां बाहागोफोराव बुथुमथाय खारथायफोरनि थाखाय।
The underlying cause is due to ischaemia (reduced blood flow) or accumulated strokes in various parts of the brain.