Some studies done in 2001 estimated that the income from cultivating khat was about 2.5 million Yemeni rials per hectare, while fruits brought only 0.57 million rials per hectare.Between 19, the area on which khat was cultivated was estimated to have grown from 8,000 to 103,000 hectares.Its fresh leaves and tops are chewed or, less frequently, dried and consumed as tea, to achieve a state of euphoria and stimulation; it also has anorectic (appetite-reducing) side effects.The leaves or the soft part of the stem can be chewed with either chewing gum or fried peanuts to make it easier to chew.However, it can reach heights of up to 10 m (33 ft) in equatorial areas.The plant usually grows in arid environments, at a temperature range of 5–35 °C (41–95 °F).Khat was ranked 17th in dependence, 20th in physical harm, and 20th in social harm.Individuals become very talkative under the influence of the plant.
Addiction experts in psychiatry, chemistry, pharmacology, forensic science, epidemiology, and the police and legal services engaged in delphic analysis regarding 20 popular recreational drugs.
Among communities from the areas where the plant is native, khat chewing has a history as a social custom dating back thousands of years analogous to the use of coca leaves in South America and betel nut in Asia.
It is a controlled substance in some countries, such as Canada, Germany, the United Kingdom, and the United States, while its production, sale, and consumption are legal in other nations, including Djibouti, Kenya, Uganda, Ethiopia, Somalia and Yemen.
the khat plant has over the years found its way to Southern Africa as well as tropical areas, where it grows on rocky outcrops and in woodlands.
The shrub is today scattered in the Kwa Zulu-Natal, Eastern Cape, Western Cape and Mpumalanga provinces of South Africa, in addition to Swaziland and Mozambique.