doctors used to recommend cigarettes were promoted as being good for health, till early 1950s. : r/HistoricalCapsule did doctors recommend cigarettes Once

[18] They are generally considered advanced devices

"I do think people are going to generalize." From the tobacco industry's point of view, marijuana could serve as a "smoke inhalation trainer," and thus become a gateway to tobacco use, says Robert K

Contrary to popular belief, theres nothing you can do (drinking coffee, taking a cold shower, etc.) that will speed up this process

Currently, the existing evidence is insufficient to support the reduced exposure claims for HTPs, and existing evidence is also insufficient to support either the reduced risk or reduced harm claims for HTPs [115]

Thaimin and other B Vitamins Calcium Magnesium Potassium Iron Zinc Of course it is entirely possible that caffeine and coffee impair the absorption of other (or even most) nutrients