India, Sept. 5 -- As you sit on the toilet, you may strain because you are constipated or simply out of habit. Many people also scroll on their phones in the bathroom, making them less conscious of how long they have been sitting or straining. It is already known that habit is dangerous for your colon, but what about your heart?ALSO READ: Young, fit and still at risk of a heart attack? Cardiologist explains warning signs and prevention tips

Excessive straining can place sudden stress on the cardiovascular system and, in vulnerable people, may even trigger a cardiac emergency. But why does this happen?

According to Dr Bipeenchandra Bhamre, cardiac surgeon at Sir HN Reliance Foundation Hospital, this may be more common than you realise, p...