A new study shows that people who quit smoking before age 40 could live just as long as people who've never had a cigarette in their life.
ການສຶກສາຄົ້ນຄວ້າບັ້ນໃຫມ່ ພົບວ່າ ຄົນທີ່ເຊົາສູບຢາ ກ່ອນຮອດອາຍຸ 40 ປີ ສາມາດມີຊີວິດຍືນນານ ເກືອບເທົ່າກັບ ພວກທີ່ບໍ່ເຄີຍສູບຢາ ຈັກເທື່ອ.