life cycle of tobacco hornworm The A Hornworm…and my unexpected friendship with a moth Metamorphosis & the Tobacco Hornworm

According to the CDC, smoking causes about 20% of all cancers and about 30% of all cancer deaths in the United States 1

In addition, they destroy vegetation that can help filter air and carbon dioxide

The risk of peripheral vascular disease, which can cause gangrene, was five times greater in smokers

Importantly, propensity scorematched sensitivity analyses showed that the inverse associations for current e-cigarette use only versus never users and versus current cigarette smoking only were directionally consistent with the regression estimates but attenuated and no longer statistically significant after matching on observed covariates