An experiment conducted on the hearts of pigs has revealed that toxic car exhaust fumes can actually be a cure for heart disease but only when it is inhaled in small amounts.

Even though this research is at a very early stage, scientists are hopeful of its potential to treat victims of stroke and heart disease.
Prof Jeremy Pearson, associate medical director at the British Heart Foundation said: "In large amounts these gases are harmful, but in small doses they actually have a beneficial effect."
Source-Medindia