WARNING: Not for the squeamish
The first of the video shows the buildup of tar in the trachea, which was severely discolored from even just one pack of cigarettes. When a healthy non-smoking lung is compared to the one ran through the test, the discoloration in the smoking lung also becomes more apparent. There are an estimated 5.8 trillion cigarettes smoked each year which correlates to about 121 million years of people’s lives lost collectively every year just due to smoking.
[Image Source: MEDspiration]So, if you’re thinking that just one cigarette won’t hurt you, think again. While not everyone who smokes will die of cancer, smoking will drastically increase your risks and also cause other health problems to manifest.
Source: Interesting Engineering