Long working days can cause heart problems, study says

Chances of developing irregular heartbeat - atrial fibrillation - spikes up considerably with working more than 55 hours a week, research shows

A long hours office culture can affect more than just your social life - long days at work can be bad for your heart as well, according to a major study.

It's been established that too many hours in the office can increase the risk of a stroke. Now it seems that clocking up more than 55 hours a week means a 40% higher chance of developing an irregular heartbeat, known as atrial fibrillation (AF), when compared to those with a better work-life balance.