Researchers believe that this is because blood platelet cells are extremely sensitive to tobacco smoke.

Experts fear vaping leads to tobacco smoking.

The lemon and orange zest is rich in limonene, which appears to disarm a range of carcinogens, including nitrosamines in tobacco smoke.

Two chemicals in tobacco smoke, nicotine and carbon monoxide, are particularly damaging.

And the set was always wreathed in tobacco smoke.