They just dont know it
And the younger brain is much more likely to develop addiction because the brain undergoes its greatest changes in early to mid adolescence. In fact, research has found that teens are at significantly higher risk of developing cannabis use disorder within the first year after starting to use cannabis than adults are
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He says 95 percent of adult smokers begin before age 21
I had never heard of him, though he was Poet Laureate of the US from 2001 to 2003 (I will admit I couldn't off the top of my head name another other than Robert Frost)
Underestimated Dangers of Smoking and What Nicotine Does to Your Body Clinically reviewed by Julie Yoko Yoshimachi, DNP Smoking is a leading cause of lung cancer and many other preventable diseases worldwide, yet its dangers still remain underestimated