BBTác giả: Abdelwahab, Siddig Ibrahim; Người hướng dẫn: -; Người tham gia: Mohamed , Manal Mohamed Elhassan Taha (2022)
Catha edulis is a perennial herbaceous plant of the Celastraceae family. It is referred to locally by various names, including Khat, Qat, and Gat in Yemen, Qaat and Jaad in Somalia; and Chat in Ethiopia (Al Moaleem et al. 2017; Alhazmi et al. 2020; Taha et al. 2014). For eight centuries, the inhabitants of East Africa and the Arabian Peninsula have chewed Khat (C. edulis). This plant's natural habitat is Ethiopia’s Hararghe Zone. Countries like Uganda, Ethiopia, Kenya, Yemen, and Djibouti where it is widely used have legalized its cultivation, sale, and chewing. Over 20 million abusers are thought to exist today, including both male and female adults, as well as college and middle sch... 
