Re-posting (from May 26), with some updates...
A team of UCLA researchers under the direction of one Donald Taskin is reported to have found, contrary to malicious Drug War agitprop, that inhaling the haze of Mary-Jane, “even regularly and heavily, does not lead to lung cancer.”
Intaking the toke, according to Tashkin’s work, may — perhaps — even have “‘some protective effect’” on the lungs.
The Post adds that past studies Tashkin conducted had pointed to toxic agents in marijuana akin to those which are understood to be cancerous in tobacco. However, “the chemical THC [TetraHydroCannabinol] … may kill aging cells and keep them from becoming cancerous,” Tashkin asserts.
Unlike the wacky tobacke, the other leaf is highly addictive thanks to nicotine; likely, there’s the greater health threat — with the accepted, massively subsidized cash crop and not the demon-plant sown into the black market.
NOTES: (Researchers of the Kaiser Permanente Medical Care Program, in 1997, tentatively “concluded that … marijuana use and cancer were not associated in overall analyses” in their study.
(Ahmedin Jemal and Kenneth Chu of the Journal of the National Cancer Institute write that “a contribution” to overall trends of “lung cancer mortality” post-1950 among people under the age of 45 “from marijuana smoking cannot be ruled out.”
(L.E. Hollister of Pharmacological Reviews, however, pointed out in 1986 that cases of “emphysema or lung cancer have not yet been documented.”
(Yet according to a 1998 Lancet study, “chronic” smokers — and this is portrayed as by no means certain — may suffer “bronchitis and histopathological changes that may be precursors to the development of malignant disease” [p. 3].)
Who knows? I don’t, certainly.