A blood test measuring the gamma-prime fibrinogen (a component of the blood's clotting mechanism) could help identify people at risk of heart attack, according a study from the Oregon Health & Science University.

There is no direct evidence suggesting the standard practice of administering oxygen to patients during a heart attack is beneficial.

A recent study from the University of Chicago found that sexual activity declines in the year following heart attack for patients who don't get instructions from their doctors regarding when it's safe to have sex again.