Jennifer and David are expected by their parents to eat a "healthy" breakfast before they go to school. Jennifer is discouraged by the sheer amount of food she must eat but does so at the polite insistence of her mother.

Morgan talks to some health experts about the obesity epidemic in America and how fast food restaurants are a contributor to it. Lisa Young, a professor at New York University, illustrates how fast food companies have changed their portion sizes over time to make excessive amounts of food the norm.

Morgan orders a Super Size meal from McDonald's and shows how much food and drink he is given. As he continues his meal, he feels terrible and experiences bad gas, sweating, nausea, and throwing up.

What is cancer, and how does it start? Find out how genetics play a role, which types of cancer are the most prevalent, and what is being done to fight this deadly disease.

Jane expresses concerns about her obligations during her sister's wedding, and Kevin helps her practice saying no.