Masu bincike sun ce sun sami burbudin taba dake haddasa cutar sankara da ake kira NNAL a jikin wadanda suke shan taba da zarar sun tashi daga barci fiye da wadanda suke jira sai bayan minti talatin ko fi bayan sun tashi daga barci kafin su sha taba.
Binciken ya nuna cewa, yawan NNAL a jikin mai shan taba da wayewar gari yana karuwa da tsawon shekarun shan taba, kuma yana iya zama hadari ga mai shan taba.