Knowledge: Cancer was found a long time ago but still does not have a cure, which is horrible. On the other hand, obesity is very difficult to recover from as there is no medication but liposuction, if the patient is about to die.

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.
It seems like I'm seeing more and more very heavy people at younger and younger ages.
Well, it is being cited more often as one of America's major health issues.
Being diabetic is no joke. No one wants to loose their feet.
Yikes! I'm aware that diabetes mellitus is associated with nerve disorders.
That's horrible. Do you know if there is a cure for diabetes mellitus?

Response: Sadly there is still no cure but to get liposuction, if the patient is about to die.