human
My doctor says I have to quit smoking. What are the health risks of smoking?
assistant
The main health risk associated with smoking is an increased risk of lung cancer, heart disease, stroke, and other diseases caused by inhaling tar and chemicals into your lungs. Other risks include a higher risk of developing respiratory problems such as bronchitis, asthma, and emphysema, as well as an increased risk for mouth, throat, and esophageal cancers. Smoking can also cause fertility problems in men and women, and increase the risk of pregnancy complications. In addition, secondhand smoke from cigarettes can be dangerous to those around you, including children and pets.