SATURDAY, March 13 (HealthDay News) -- Police who responded on 9/11 to the collapsing World Trade Center towers appear to be at greater risk for heart problems compared with people in the general population, a new study finds.

SATURDAY, March 13 (HealthDay News) -- The common skin ailment psoriasis may boost the risk for heart attack, stroke and other cardiovascular woes, probably through a shared inflammatory response, a new Danish study found.

SATURDAY, March 13 (HealthDay News) -- If regular exercise such as jogging is good for the heart, then turbo-charged workouts like training for marathons must be even better, right?

SATURDAY, March 13 (HealthDay News) -- Mona Lisa's smile remains one of art's great mysteries, and many credit it with the portrait's enduring appeal.

SATURDAY, March 13 (HealthDay News) -- Running a marathon is challenging enough, but now new research shows that the performance of female marathoners can be hindered by a certain type of air pollution.

SATURDAY, March 13 (HealthDay News) -- Job-related eye strain and injuries cost the American economy billions each year in lost productivity, but 90 percent of those problems could be prevented with simple measures, such as having workers wear properly designed and fitted protective eyewear, experts say.

SATURDAY, March 13 (HealthDay News) -- When the stock market declines, do heart attacks go up? That's what Duke University Medical Center researchers are wondering based on an analysis of data collected during the current U.S. economic crisis.