The guy has three packs of betel nuts a day, and at the age of 28 he has become a "face cutter", why do people always not listen to advice?

Resources:

[1] Hu YJ， Chen J， Zhong WS， Ling TY， Jian XC， Lu RH， Tang ZG， Tao L. Trend Analysis of Betel Nut-associated Oral Cancer and Health Burden in China. Chin J Dent Res. 2017;20(2)：69-78. doi： 10.3290/j.cjdr.a38271. PMID： 28573260.

[2] ZHANG Jing, DAI Jiahui, DAI Wenting, et al. Research progress on the carcinogenicity, submucosal fibrosis and excitatory effects of betel nut alkaloids[J/OL].Food and Fermentation Industry:1-10[2023-06-16].https://doi.org/10.13995/j.cnki.11-1802/ts.035535.

[3] More than 70 countries banned sales, betel nut encountered another "wave of removal". Southern Rural Daily. 2022-09-22

[4] Yang Li. Quit betel nuts to avoid getting into trouble. Professor Yang Li talks about immune health and enhancing immunity is the last word[M]. 2021

[5] Zhong Kaizuo. Can you eat betel nut at all?. Health Science Popularization Series Eating this way is safe[M]. 2021

[6] Weng Shuxian. Chewing betel nut is addictive , beware of oral cancer. Family Medicine:Drug Selection,2021(5):82-82.

[7] 44 of the 45 hospitalized oral cancer patients chewed betel nut for a long time Who cares about the harm of betel nut? Global Health. 2018-06-08

[8] Zhang Xuewei. Craving to eat betel nut is harmful. Know all about health[M]. 2016

[9] Lv Jie. Mouth-chewing betel nut is harmful. Food Safety Guide, 2013(20): 69-69.

[10] 12 Li Yiping, eds. Betel nut is harmful, please do not chew again. Oral diseases and systemic health[M]. 2017

LIU Yang. Oral submucosal fibrosis. Advanced Senior Physician in Stomatology, Deputy Chief Physician/Chief Physician[M]. 2018