6 months cigarette free What I've learned in six smoke : r/stopsmoking Commit to Quit: 6 Tips
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Get help if you want it

Wenzel P, Mollnau H, Oelze M, Schulz E, Wickramanayake JM, Muller J, Schuhmacher S, Hortmann M, Baldus S, Gori T, Brandes RP, Munzel T, Daiber A (2008) First evidence for a crosstalk between mitochondrial and NADPH oxidase-derived reactive oxygen species in nitroglycerin-triggered vascular dysfunction
This is only an estimate

When you have asthma, either type can be even worse
