But when doctors told Mrs Whitfield, who suffers from heart defect mitral stenosis, that she was putting a strain on her heart serious enough to require an operation, she decided to take action.
Prof Kivimaki said the evidence of a direct effect of job strain on the heart was mixed.
Wearing the suits, looking smart and talking about football - no strain on the heart at all.
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The condition means she will never be able to undergo a general anaesthetic or do anything that puts a strain on her heart or lungs.
When people first immerse themselves in such frigid water, their bodies go into "cold shock, " and they start gasping for air, which puts a strain on the heart.
"Cold weather puts an extra strain on the heart, " the CDC said, also noting that overexertion can become even more dangerous to those with heart conditions in the Arctic cold.
Being morbidly obese -- 100 pounds or more overweight -- also put me at risk for sleep apnea, heart disease and all sorts of joint strain and pain.
Once I started to put on weight however I began to struggle with day to day tasks - my heart just wasn't coping with the extra strain.
This is because Jodie's heart and lungs will not be able to take the strain of supporting her sister's body.
This particular strain of Coxsackie B causes myocarditis, or inflammation of the heart.
And since it will prevent thousands of heart attacks and cases of childhood asthma, it will also take some strain off our health care system.
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