red lips smoking cigarette Close-up of a woman's with lipstick a against a dark background 70854382 Stock Photo at Vecteezy CconceptLab - Sexy Red Lips

To quit smoking is easier said than done, and it can become less satisfying when the stubborn stains remain on your teeth long after you have kicked the habit

If you use cannabis Smoking cannabis doesnt disqualify you from giving blood

Without cat's eyes, for example, driving at night would be far more hazardous - but how often do we take notice of them?" says Challoner

One of the more notorious examples appeared in the New England Journal of Medicine in January 2015

Smoking by itself does not cause direct damage to your teeth

"Very little is known about what happens with these when heated and inhaled for weeks, months or years." Key question #2: Are e-cigarettes safer than regular cigarettes