benefits of tobacco chewing health quitting Life's Essential 8 Benefits of quitting tobacco: MedlinePlus

Some people will be asymptomatic, but if symptoms develop, they can include fever, diarrhea, nausea, loss of appetite, abdominal discomfort, dark-colored urine, and jaundice (yellowing of the skin and eyes)

from the Daily Mail : They are marketed as being healthier than conventional cigarettes, but experts are warning that people who smoke electronic cigarettes could still be inhaling a host of dangerous chemicals

Cigarette filters are a design flaw , being merely a marketing tool to sell more cigarettes

Carbon Monoxide and DiabetesWhy CO and oxygen delivery matter more for diabetic smokers

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The ASR of YLLs fell from 15.76 (95% UI: 3.6244.13) to 12.24 (95% UI: 2.9034.28), and YLDs fell from 7.57 (95% UI: 4.6411.22) to 6.12 (95% UI: 3.729.03), with overall reductions of 22.33% and 19.15% (Figures 1A1D)