Financial stress also contributes to behavior proven to increase heart disease risk.

But there is evidence that the stress of keeping the problem a secret can contribute to things getting worse.

Researchers should keep talking to women who say that stress contributed to their cancers.

He said the stress of being laid off and worrying about losing his home contributed to a heart attack last year.

Exhaustion and stress would have contributed to that, but it was something more.

What is more, chronic stress contributes to behavior that makes it harder to recover, he said.

The stress of the job almost certainly contributed to Reeves's having heart surgery about five weeks ago.

The stress of those events, both say now, contributed in large part to a decision to break up.

It is possible that the stress contributed to his death as he was drawing near to the close of the novel.

The stress of the music business contributed to the band's breakup in 1993.