Smokers: colon cancer

Daughters and wives of smokers: infertility

Adults with asthma: pneumococcal disease

Sri Lankan farmers: rat fever

Cancer survivors: osteoporosis

Rotund folk: everything

60%+ of the American population: heart failure

Hajjis: meningitis

Insomniacs: heart disease

Headbangers: brain damage (Best quote: “The study’s authors also observed the headbanging of cartoon characters Beavis and Butthead. Listening to the Ramones’ I Wanna Be Sedated, Beavis kept his “angular head velocity” within safe limits, they wrote. Butthead did not.”)