Lung Cancer Lung cancer is the biggest cancer killer in the world, read how in some cases it can be prevented. Heart Attacks Smoking tobacco can cause a heart attack, stroke and raise blood pressure. Our factsheet has all the facts on how smoking affects your heart health. Environment Smoking and tobacco production has a devastating impact on the environment Shisha Shisha is a way of smoking tobacco and still contains all the harmful chemicals Secondhand Smoke Second-hand smoke kills. Find out how second-hand smoke effects people and animals. E-cigarettes Read and download the latest facts on e-cigarettes.