If you're working in a stressful job it's not just your blood pressure at risk. Your efforts to keep your boss happy may be pleasing them - but it leaves your body at risk of cancer, groundbreaking new research has found. Working in a stressful job for 15 years increases the risk of five forms of the disease, scientists warn. Job insecurity, high work load, time pressures should be considered a public health issue, experts now argue.