"Several plausible biological factors and mechanisms have been hypothesized linking physical activity to reduced lung cancer risk including: improved pulmonary function, reduced concentrations of carcinogenic agents in the lungs, enhanced immune function, reduced inflammation, enhanced DNA repair capacity, changes in growth factor levels and possible gene-physical activity interactions."
http://www.ncbi.nlm.nih.gov/pubmed/21113762
Recent Results Cancer Res. 2011;186:101-33.
Physical activity and lung cancer prevention.
Emaus A, Thune I.
Division of Cancer Etiology, Department of Population Science, City of Hope National Medical Center, Duarte, CA, USA, aina.emaus@medisin.uio.no.
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