Land diving is a special tribal ritual that looks like bungee jumping. Young men climb to the top of a wooden tower and jump down head first. A tree vine prevents a certain death.
According to World Health Organization khat is a drug of abuse that can produce mild to moderate psychological dependence. It's very popular in Arab countries where alcohol is illegal. About 80% of adult men are using khat on regular basis. Khat is a slow-growing shrub or tree.
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