21 (the latest data available), the Centers for Disease Control and Prevention reports that there have been 2,711 cases of people who've been hospitalized with EVALI, or e-cigarette, or vaping, product use-associated lung injury
Until backpacks came along, we only used half of our bodies: the front half
As human settlements increase, there is less opportunity for birds to access natural resources
E-cigs carry unique risks not found in cigarettes, mainly from ingredients in the "juice" flavorings: formaldehyde, acetylpropionyl, acetoin, and diacetyl, all of which are carcinogens or irritants
Smoking remains the leading preventable cause of cancer, but in recent years, the number of smokers has steadily declined while the number of obese individuals has steadily increased