Penelope is under a lot of stress when she meets Schneider. They have a conversation, and Schneider notices that she doesn't sound like herself. Penelope takes out her aggrevation on him.

Rebecca is extremely happy to have a diagnosis and sings a song all about it.

Doug and his friends learn to overcome their body insecurities.

Marge is put under a lot of stress with all of her responsibilities, which include solving the problems of the rest of the family. She gradually is negatively affected by all the stress and ultimately reaches her tipping point, causing her to put herself and Maggie in danger. Her handling of the situation suggests she has poor stress management skills.

The four steps in acquiring, maintaining and improving mental health: express emotions naturally, respect yourself, respect others, and solve problems as they arise.