Nothing to smile about: Asia’s deadly addiction to betel nuts

Editor’s Note: CNN’s On the Road series takes you to different countries, exploring the challenges and opportunities they face. In October we visit Myanmar focusing on the country’s development and putting its transformation in a global context.

Story highlights

Hundreds of millions of people chew betel quids, mostly in Asia

Research shows that chewing the parcels raises the risk of oral cancer

Betel quids are parcels of areca nuts and tobacco wrapped in a lime-coated betel leaf

In Myanmar, they're popular with taxi drivers who use them to stay awake on the roads