Surface stains occur when particles from nicotine and tar adhere to the outer enamel layer, creating visible yellow or brown marks
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67%), and identify the Camel brand (93.6% vs 57.7%)
Dr Sarah Jackson, lead author and principal research fellow at UCLs Institute of Epidemiology and Health Care, said: This 15-year study captures shifts in smoking behaviour, showing that while the average number of cigarettes smoked per day has fallen, this trend has stalled since 2019
Withdrawal symptoms can vary from person to person, but the following changes in your body are common for most people during the first 72 hours after quitting smoking