Did You Know?

Did you know that for every day that you are quit, your immune system improves?

Sopori, ML; Kozak, W. (1998). Immunomodulatory effects of cigarette smoke. Journal of Neuroimmunology, 83(1-2):148-56.

View more interesting facts from Smokefree.gov's "Did You Know" page.

Smokefree.gov National Cancer Institute Centers for Disease Control and Prevention National Institutes of Health Department of Health and Human Services USA.gov