The tree planted by my Grandma in front of our house 30-odd years ago!
The International Agency for Research on Cancer has concluded that chewing areca nut is carcinogenic to humans. It made this conclusion after reviewing the published scientific studies related to health effects of chewing areca nut.
Actually a drupe, areca nut wrapped in betel leaves is a popular chewing item in Bangladesh, mostly among those living on and under the poverty level. The government does not seem to run any awareness activity on the harmful effect of chewing areca nuts.