why do people enjoy smoking cigarettes Yes, kills — but here's I love it anyway Smoking - Health Risks, Addiction,

This is a checklist to run through with your doctor it is not exhaustive but if any of these are present, do highlight it

Furthermore, CO in the cigarette smoke binds to haemoglobin replacing oxygen with COHb up to 7%15% and this shifts the oxygen dissociation curves to left and will reduce oxygen availability to tissues.[13] Strong affinity of CO for binding to haemoglobin (250 times more than that of oxygen) can be offset by allowing the patients to breath 100% oxygen before anaesthesia induction

Gastric intestinal metaplasia

They want to help relieve hospital emergency departments who will already be swamped