Nicotine is what makes smoking cigarettes so addictive. This drug makes your body crave more cigarettes and that means inhaling all those chemicals.
Cigarette smoke contains over 4,000 chemicals and poisons. More than 70 of them have been shown to cause cancer in human studies or lab tests. Some of the poisons and chemicals in cigarette smoke are:
When you smoke, many of these chemicals mix together and form a sticky tar. The tar sticks to tiny hairs that line the insides of your lungs – hairs that are supposed to keep your lungs clean by sweeping out dirt and germs. But when they’re covered in tar, they can’t do their job properly. This is what leads to smoker’s cough to spit up the dirt that’s still in your lungs. It also leads to many other health problems.
A clinical trial led by the Society’s NCIC Clinical Trials group found that men with prostate cancer who are treated with intermittent courses of hormone therapy live as long as those receiving continuous therapy.