Mounting evidence has found that depression makes people more vulnerable to heart trouble. Recent studies, though, find that some genes that increase the risk of heart disease also may make people more prone to depression, which has raised the question of whether the depression-heart disease link is genetic.
But the twins study, which followed more than 1,200 middle-aged men, teases out the influence of genetics and finds that depression takes a huge toll on the heart that can’t be chalked up to a roll of the genetic dice.
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