[PMC free article: PMC4539558] [PubMed: 18385739] Thorgeirsson TE, Gudbjartsson DF, Surakka I, Vink JM, Amin N, Geller F, Sulem P, Rafnar T, Esko T, Walter S, et al
Smoking, including e-cigarette use, increases the risk and severity of pulmonary infections because of structural damage to the upper airways and a decrease in pulmonary immune function 22

Table of Contents Company Snapshot US Smokeless Tobacco Co: Company Overview US Smokeless Tobacco Co: Overview and Key Facts US Smokeless Tobacco Co: Overview US Smokeless Tobacco Co: Key Facts US Smokeless Tobacco Co: Key Employees US Smokeless Tobacco Co: Key Employee Biographies US Smokeless Tobacco Co: Major Products and Services US Smokeless Tobacco Co: Locations and Subsidiaries US Smokeless Tobacco Co: Key Competitors US Smokeless Tobacco Co: Company Analysis US Smokeless Tobacco Co: Business Description US Smokeless Tobacco Co: SWOT Analysis US Smokeless Tobacco Co: SWOT Overview US Smokeless Tobacco Co: Strengths US Smokeless Tobacco Co: Weaknesses US Smokeless Tobacco Co: Opportunities US Smokeless Tobacco Co: Threats Appendix Contact the Publisher Methodology About the Publisher List of Tables Table 1: US Smokeless Tobacco Co: Key Facts Table 2: US Smokeless Tobacco Co: Key Employees Table 3: US Smokeless Tobacco Co: Locations and Subsidiaries Table 4: US Smokeless Tobacco Co: Key Competitors

This can lead to decreased athletic ability, as users will no longer be able to function as they used to and push themselves as hard as they used to without feeling sick