Leia o texto para responder à questão.

Adolescent Health
Young people are a large age group, comprising approximately 30% of the population in Latin America and the Caribbean. Adolescents are generally considered to be a “healthy” segment of the population, and their health needs are often ignored. However, investing in health and education for young people and adjusting economic policies enable productivity and economic growth.
In addition, investment in young people’s health is essential to protect investments made in childhood (e.g. significant investments in vaccines and food programs) and secures the health of the future adult population. Mosthabits harmful to health are acquired during adolescence and youth and manifest themselves as health problems in adulthood (e.g. lung cancer caused by the consumption of tobacco), adding an avoidable financial load to the health systems.
According to the text, an example of bad habit acquired during adolescent years is