chewing tobacco in blood test does affect a The health impact of smokeless tobacco products: a systematic review Chewing Tobacco and Fatty Liver:

If this dangerous gas is getting into your system, you might: Feel short of breath Get dizzy Become nauseated Get a headache Feel confused Carbon monoxide is especially dangerous for infants, those who are pregnant, and people with ailments such as emphysema (which damages the air sacs in your lungs), asthma, or heart disease

So...Is Chewing Tobacco Better Than Smoking Cigarettes

[26] In the early years at Jamestown the settlers paid little heed to quality control

He isnt about to switch out his jacket for a coat

Every cigarette contains thousands of chemicals that place stress on the body, weaken the immune system, and increase inflammation