human
I've heard a lot of talk about the dangers of smoking. What are the facts?
assistant
The main danger from smoking is that it can cause lung cancer and other serious health problems, such as heart disease. It also increases your risk of stroke and other diseases. Smoking has been linked to many other illnesses, including emphysema, bronchitis, and pneumonia. In addition, secondhand smoke can be just as dangerous as inhaling tobacco smoke directly.