doctors prescribing cigarettes were promoted as being good for health, till early 1950s. : r/HistoricalCapsule The “More Doctors Smoke Camels”

We all saw what happened." Noem responded, "It absolutely is what happened." [191] Leaders in the Civil Rights Division of the Justice Department declared that they would not investigate the ICE agent involved in this incident for any constitutional violations, even though it is customary for them to take the lead in such cases

These smoke-free alternatives are a much better choice for adult smokers who would otherwise continue smoking

on the other hand, if you smoke slowly, the effect will be far worse

Or it may not be obvious that its caused by your smoking habit

It may come and go over time

Glantz SA, Parmley WW