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The figure below indicates cigarette smoke components whether delivered by inhalation or more directly into the circulation negatively impact the fatigue resistance of skeletal muscle

Perhaps its time to realize that it isnt the resinous tar in tobacco cigarettes thats inherently harmful but rather the thousands of toxic, carcinogenic chemicals that get trapped in tobacco tar and then adhere themselves to the lining of your lungs

PMID 7638331.

For lasting results, consider professional whitening touch-ups and, if possible, take steps toward quitting smoking

Figure 4 Smoking and Monocytes-Macrophages Circulating monocytes are derived from hematopoietic progenitor cells in the bone marrow