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"Treatment" of sad emotional states with nicotine over time may also impair innate restorative responses, just as treatment of chronic pain with opioids results in many patients experiencing hyperalgesia, a pathologically heightened response to painful stimuli

The study design placed non-smokers in a sealed, unventilated chamber with experienced cannabis users who smoked high-potency marijuana (up to 11.3% THC)

keep a few feet between them so moisture from the humidifier doesn't get drawn into the purifier's filter and shorten its lifespan

Tob Control 2022;31:e8893

For such a wide spread practice education is important and this anatomy poster can help do that

King, T