A massive nationwide study shows that lighting up before age 20 leaves a lasting cardiovascular imprint, intensifying the damage of smoking and raising the risk of heart attack, stroke, and early ...

The age at which you start smoking could have a bigger effect than how long you’ve smoked for, a study suggests. Researchers from Seoul National University Hospital have said that starting smoking ...

If you started smoking earlier than 20, there’s bad news for you. A major study says those who began smoking in their teenage years have a significantly higher risk of stroke later in life, often ...