Dating age of cigarettes
Since 1982, two years prior to the Uniform Drinking Age Act establishing an MLDA of 21, a decline of drunk driving fatalities occurred across all age groups and demographic categories, and therefore cannot be reliably attributed to MLDA 21.
MLDA 21 encourages young adults to acquire and use false identification documents to procure alcohol.
The inside of the jar can is covered in the same substance. It also causes cancer in many other parts of the body, including the mouth, lips, throat, voice box (larynx) and oesophagus (the tube between your mouth and stomach).
Smoking also damages your heart and blood circulation, increasing your risk of coronary heart disease, heart attack and stroke.
Opponents of lowering the MLDA argue that teens have not yet reached an age where they can handle alcohol responsibly, and thus are more likely to harm or even kill themselves and others by drinking prior to 21.
The clip also shows the pump's tube, which represents the throat, clogged with a sticky brown gooey tar.
In the US, 15 per cent of adults smoke, or around 49 million: 17 per cent of men and 14 per cent of women.
The video starts with Chris cutting open the tube that was used to suck the smoke through the jar.
He then wipes his finger on the inside of the tube to show viewers how it is covered in brown liquid, which he smears onto a piece of paper.