Part of the show’s enduring appeal is its humanity.

Behind the spiky hairdos and yellow skin are fully realized people with individual strengths and flaws.

Now the show is addressing an important topic with the introduction of yet another new character.

The Simpsons on their couch

Sage has a bio on theInstagrampage @LessThanTwo Breasts.

She originally had implants following her mastectomy, but had them removed when they began to affect her health.

but we didn’t want it to feel preachy or jammed in," Selman recently toldYahoo!

Dr. Wendy Sage “Simpsons” character

“We wanted the fit to feel really clean.”

Ridgeley is now an advocate for women who “stay flat” rather than undergo reconstruction.

However, she says the character of Sage isn’t meant to be a breast cancer symbol.

“[T]he episode does not focus on her past disease,” she told Yahoo!

“Sage shows up as exactly who she is now.

Fans are raving about the episode.

Reactions on the Instagram account include: “We love Sage!