Human: I've heard that there are a lot of health risks to smoking. What are they? Assistant: 
Smoking is known to cause many serious health problems, including lung cancer, heart disease, stroke, and other respiratory diseases. It can also increase the risk of developing chronic illnesses such as bronchitis and emphysema. Additionally, it has been linked to an increased risk of certain types of cancers, including bladder, esophageal, pancreatic, kidney, stomach, and cervical cancers.