Enormously!: Fitness correlates directly with aerobic capacity (vo2 max) and smoking greatly reduces aerobic capacity. It reduces oxygen uptake and delivery to tissues (alveolar destruction & mucous) and blood flow via constriction (narrowing) of blood vessels. Please do not smoke! btw, yoga can help! http://www.Statperson.Com/journal/scienceandtechnology/article/volume6issue3/6_3_2.Pdf.
Answered 5/23/2013
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