Add Yahoo as a preferred source to see more of our stories on Google. Melanie Griffith is a chain-smoker who continues to spark up, despite her not-so-distant bout with skin cancer. Now, loved ones ...

People who smoke can become physically dependent on nicotine, which is the chemical in tobacco products that makes them addictive. Individuals who vape may also experience this physical dependency.

At the age of two he shocked the world after being pictured chain-smoking cigarettes. Two years on he's now a normal, cheeky five-year-old - and, while he's managed to kick the habit, he now has ...