"Stress Relief" is a two-part episode of the American comedy television series The Office. It constitutes the fourteenth and fifteenth episodes of the fifth season and the 86th and 87th overall episodes of the series. Both episodes were directed by Jeffrey Blitz and written by Paul Lieberstein, who also plays Toby Flenderson on the show.

In this episode, Dwight stages a fire in the office to test the office's fire safety skills, but things go from bad to worse when Stanley suffers a heart attack, causing Michael to come up with ways to relieve stress in the office, including a comedic roast of himself. Meanwhile, Andy, Jim, and Pam watch an illegally downloaded movie at work starring Jack Black, Jessica Alba and Cloris Leachman, and Pam deals with her parents' recent argument that's caused her father to move in with her and Jim temporarily.

Both parts of "Stress Relief" originally aired together on February 1, 2009 on NBC, immediately following NBC's broadcast of Super Bowl XLIII, and The Office writers and producers sought to attract newcomers to the series with the expected increase in viewership. Guest stars Black, Alba and Leachman do not interact with the regular characters themselves, but rather appear in a film within the episode. The Office creator Greg Daniels said this was done to keep the episode more grounded in reality.

The episode received generally positive reviews, with Time magazine declaring it the best overall television episode of any series in 2009. The episode is considered a favorite by many fans of the series. Many commentators particularly praised the chaotic cold open scene, in which Dwight panics his co-workers with a simulated fire as part of a twisted safety demonstration. Because it aired following the Super Bowl, "Stress Relief" was the most viewed episode of The Office with 22.9 million viewers according to Nielsen Media Research during its original broadcast. It won the Primetime Emmy Award for Outstanding Directing for a Comedy Series, and received another nomination for Outstanding Single-Camera Picture Editing for a Comedy Series.

Annoyed that none of his co-workers paid attention to the fire safety seminar he gave last week, Dwight Schrute decides to get revenge by simulating a fire. Setting a fire in a trash can, Dwight calmly explains the proper safety procedures as the panicked employees try to flee, only for Dwight to have made the "fire" non-survivable by sealing the office exits shut and cutting the phone lines. Dwight eventually reveals it was just a "test", but things go terribly wrong when Stanley Hudson suffers a heart attack and collapses in the commotion. Later that day, Dwight is subsequently reprimanded by Dunder Mifflin CFO David Wallace, and Michael strips him of his position as safety officer.

After Stanley is released from the hospital, his doctors warn him to keep his stress levels under control. Michael arranges for a CPR training session for the employees, but they are too easily distracted and the lesson proves fruitless. The session ends when Dwight destroys the expensive CPR dummy to try and "extract the organs" for organ donation, then wears its face, earning another rebuke from David Wallace. Dwight is ordered to apologize to his co-workers and get signatures acknowledging that they forgive him, but after he openly declares that his apology is insincere and denies that he is responsible for Stanley's heart attack, they refuse to sign. With tensions running high in the office, Michael tries to calm his workers down with yoga and meditation sessions. However, Michael soon realizes he is actually the source of his employees' stress when the beeping of Stanley's stress reader quickens the closer Michael gets to him. The same occurs when Oscar holds the stress reader.

Michael, to solve the problem, organizes a comedic roast of himself in the warehouse. Dwight tricks most of the employees into signing his apology letter by pretending it is a sign-in sheet, but Phyllis Vance uncovers it and refuses to sign. Each of the office and warehouse workers gleefully take jabs at Michael, who initially seems to enjoy the jokes, but grows increasingly hurt and offended, storming out of the warehouse. Michael takes a personal day, much to the concern of his employees, and spends time at a playground to reflect. Dwight manages to trick Phyllis into signing his apology letter by bribing a mailman to ask her to sign for a fake package. Michael returns to the office, where he roasts each of his co-workers with one-liners, causing Stanley to laugh heartily. Michael tells his employees that they are the reason he got into the paper business, and they applaud him.

Meanwhile, Pam Beesly's parents are going through a rough patch in their marriage, and Pam's father is staying with her and Jim. Pam asks Jim to convince her father to work things out. However, shortly after they talk, Pam learns her father has sought a separation. She later confronts her father about why he left her mother. When Pam returns to the office, she tells Jim her father left because Jim told him how much he loves Pam, causing him to recognize his own lack of love for his wife in comparison. Pam comes to terms with the separation and tearfully embraces Jim. As this goes on, they view a pirated movie titled Mrs. Albert Hannaday with Andy Bernard. The film stars Jack Black, who is engaged to a character played by Jessica Alba, but falls in love with her elderly grandmother, played by Cloris Leachman. Andy confuses Jim and Pam's comments on her parents' situation as to the characters in the film, leading him to conclude they are "movie geniuses" finding hidden depths in the film. The movie ends with Jack Black visiting Cloris Leachman with flowers and a new walker, only to discover her affair with another young man.