Secretan B, Straif K, Baan R, Grosse Y, El Ghissassi F, Bouvard V, Benbrahim-Tallah L, Guha N, Freeman C, Galichet L, Cogliano V ( 2009 ) A review of human carcinogens - part E: tobacco, areca nut, alcohol, coal smoke, and salted fish
Some are designed for daily use, some for outdoor performance, and others for long-term durability
It may cause excessive stomach bleeding, depression, mania, and disruptive sleep patterns
"The product is marketed only to current nicotine consumers 21 years old and over as a better alternative to continued smoking and other traditional tobacco products." Mayfield could have been subjected to discipline from the NFL as the league bars players from using nicotine and tobacco products on the field or during interviews