If you're addicted to smoking, this video may provide the final push you need to quit your unhealthy (and oh so expensive) habit for good.
The below vine shows two pairs of lungs, one a glowing pink and one a shrivelled black - it doesn't take a genius to guess which pair belong to a smoker.
According to the NHS, lung cancer is the UK's biggest cancer killer causing nearly 35,000 deaths in the UK every year.
Despite being the single greatest avoidable risk factor for cancer, smoking causes one in four of all deaths from cancer in the UK.
So if you don't want your lungs to resemble a withered sack, think about giving up, won't you?
H/T: cheezburger.com