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By Marilynn Marchione The Associated Press

Running behind: Marathons may delay medical care for others

Marathons can be risky for hearts, but not necessarily those of the runners. It takes longer for nearby residents to get to a hospital for emergency heart care on the day of a race and they’re less likely to survive, a U.S. study finds.

Any event that draws a crowd and causes traffic detours parades, ball games, concerts, fairs may cause similar problems, researchers warn.

Gene therapy to fight a blood cancer succeeds in major study

An experimental gene therapy that turns a patient’s own blood cells into cancer killers worked in a major study, with more than one-third of very sick lymphoma patients showing no sign of disease six months after a single treatment, its maker said Tuesday.

In all, 82 per cent of patients had their cancer shrink at least by half at some point in the study.

It’s all good: Any exercise cuts risk of death, study finds

Weekend warriors, take a victory lap. People who pack their workouts into one or two sessions a week lower their risk of dying over roughly the next decade nearly as much as people who exercise more often, new research suggests.

Even people who get less exercise than recommended have less risk than folks who don’t break a sweat at all.

3 arthritis pain drugs prove equally safe for the heart

NEW ORLEANS — A new study gives some reassurance to arthritis sufferers who want pain relief but are worried about side effects. It finds that Celebrex, a drug similar to ones withdrawn 12 years ago for safety reasons, is no riskier for the heart than some other prescription pain pills that are much tougher on the stomach.