do cigarette burns hurt in forensic medicine Treating Pain Caused by Burns:
Description
Edibles are the most discreet product format for air travel because they resemble standard food items and do not trigger the same visual scrutiny as flower or vapes
Journal of Consulting and Clinical Psychology, 64 (6), 1152
When youre a chronic smoker, the walls of the capillaries become thicker, making it much harder for oxygen to pass through them and into your bloodstream

PMID 15084646

But Hallett points out that smoke drifts, and it affects workers in a way that alcohol doesnt

Ash residue is harder to wipe away than regular dust, so hard to reach places will still have the evidence
