Knowledge: To lower the risk of cancer, one must stop using plastic and unhealthy foods. On the other hand, working out and eating healthy every day will have less chance to get obesity.

Conversation:
Obesity is the number one problem now days. It's going to kill more people then cancer.
Is that so? I know of obesity as an excess of body fat to the point that it can have a negative effect on a person's health.
Yup, do you know how to lower the risk of obesity?

Response: Hmm, to lower the risk of obesity, working out and eating healthy every day is the key.