Where there's fire
Regarding "Risky Flames: Firefighter coronaries spike during blazes" (SN: 3/24/07, p. 180), was the increased death rate due to firefighters having a higher rate of heart disease than people do in other jobs? An analysis of eating habits may reveal more insight.
St. Louis, Mo.
The study looked only at what the firefighters were doing at the time of death. It didn't compare their heart-disease rates with those in other groups. However, the study authors suggest that the work life of firefighters, which includes significant downtime interspersed with extreme exertion, may contribute to heart disease.—B. Vastag
The study on canker sores ("Patches take sting out of canker sores," SN: 4/7/07, p. 222) compared an "untreated" group with a group using licorice patches. A more valid comparison would be