Colleague and friend Arielle Selya PhD has packed a lot in to this post, weighing in on underage use of nicotine products and trends over time.

It will be warmly welcomed by some, but those who have not yet embraced the continuum of risk across nicotine products may hear chalkboard screeches.

I do hope that folks who do not share Arielle’s priors read and engage with her thinking here.

🙏