Here’s how smoking harms the heart, clots blood and causes brain strokes

A recent publication in the medical journal Lancet reported that 44.4 per cent of global cancer deaths are attributable to three risk factors — smoking, excessive alcohol consumption and a high body mass index (BMI) which indicates overweight or obesity. Each of these is related to unhealthy behaviour, propelled by commercial drivers, which prioritise profits over people’s health.

The tobacco industry trades in death and disease, as more…