We know today that smoking tobacco leads to serious health effects. It is the the greatest cause of preventable death globally, and killed at least a hundred million deaths in the 20th century. Current smokers are estimated to die an average of 10 years earlier than non-smokers. Tobacco contains 70 known carcinogens, plus nicotine, which is a highly addictive psychoactive drug. As early as the 1700, it was generally known that tobacco caused cancer. But tobacco companies succeeded in selling their product to the public. I heard that China still smokes a lot, so I asked Google AI: Despite a slight decline in the percentage of individual smokers, overall cigarette consumption in China has surged by 39% over the past two decades . The country now accounts for nearly half of the world's total cigarette consumption , selling approximately 2.4 trillion cigarettes annually. [ 1 , 2 ] The rising trend in cigarette sales and consumption is driven by a combination of institutional, economi...