There is some evidence Modafinil only helps people with lower IQ,but after years of experimenting, it doesn't feel that way.
ມີບາງຫຼັກຖານ Modafinil ພຽງແຕ່ຊ່ວຍໃຫ້ຜູ້ທີ່ມີ IQ ຕ່ໍາກວ່າ, ແຕ່ຫຼັງຈາກທົດລອງຫຼາຍປີ, ມັນບໍ່ມີຄວາມຮູ້ສຶກແບບນັ້ນ.