According to the American Nonsmokers' Rights Foundation, as of July 2015, 24 states and the District of Columbia have smoke-free laws for non-hospitality workplaces, restaurants and bars, while 30 have smoke-free laws specifically for restaurants and bars
Increased Cancer Risk While lung cancer is the most common form of cancer caused by smoking, smoking also increases the risk of skin cancer, particularly squamous cell carcinoma
Not all actions become habitual, of course: you can throw a piece of wood or a body across a room a hundred times, and it will not acquire a habit of throwing itself
Eating food can provide a similar feel-good stimulation, which may contribute to weight gain
Bromet E, Andrade LH, Hwang I, Sampson NA, Alonso J, de Girolamo G, de Graaf R, Demyttenaere K, Hu C, Iwata N, et al