An extremely addictive stimulant drug results in an intense large even though making you feel extra targeted, energized, and awake. M?th?m?h?t?m?n? n?ur?t?x???t? ??u??? ?dv?r?? ?h?ng?? ?n br??n ?tru?tur? ?nd perform, ?u?h ?? reductions in gray m?tt?r v?lum? ?n ??v?r?l br??n r?g??n?, ?? w?ll as ?dv?r?? ?h?ng?? in m?rk?r? ?file m?t?b?l?? integrity.