"A lot more people are chewing betel nut now, more than in the past. Everyone knows it's bad for you, but people still do it because it is addictive. It becomes habitual, like having a cup of tea." ...

Worldwide, about 300 million people use smokeless tobacco and 600 million people use areca (also called betel) nut, one of the most popular psychoactive substances in the world after nicotine ...