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By raising the minimum age to purchase tobacco products to 21, we are giving young people more time to develop a maturity and better understanding of how dangerous smoking can be and that it is better to not start smoking in the first place, Christie said in a release

When it came to bipolar disorder in particular, "cannabis use disorder was associated with higher risk for psychotic than non-psychotic subtypes of bipolar disorder," the researchers noted

The reality is more complicated though, because the same study of 70,000 users found that vaping nicotine still doubles the risk of heart attack over not vaping at all, and (more of a concern) many people who vape to stop smoking actually end up doing both multiplying their risk of heart attack by five

But if you could peek into the process, at the way that the tobacco is changing over the course of those five years, you'd see a lot more variation from aging in that tobacco than you would with the ribbon cut." The reason for that different aging capability is in the amount of air in contact with the tobacco