My father , like almost all men in Yemen , would spend every afternoon , every day of the week and every month of the whole year chewing qat starting from afternoon until late at night . More than 90 % of Yemeni men chew qat , says Yemeni journalist Afrah Ali . This uses almost a third of Yemen 's groundwater , she says . No Tobacco Day on April 12 requires government offices to ban qat for the day .
More than 90 % of Yemeni men chew qat , says Yemeni journalist Afrah Ali . This uses almost a third of Yemen 's groundwater , she says . No Tobacco Day on April 12 requires government offices to ban qat for the day .