The first season of “13 Reasons Why” appeared in March 2017. The plot is set in motion when a teenage girl, Hannah Baker, kills herself. Before her suicide, she makes 13 cassette recordings detailing the agonies of her life, both to explain her actions and to accuse those she holds responsible, including a man who raped her, bullies and fickle friends.

The show was a hit, but it also gave rise to a chorus of complaints from educators and mental health experts who said the show’s portrayal of suicide was potentially dangerous, and risked inspiring copycat behavior among vulnerable teens.

The suicide scene, in the final episode of the first season, originally showed Hannah graphically cutting her wrists in a bathtub. Now it shows her staring at herself in the bathroom mirror, and seconds later, her parents entering the bathroom and discovering her body.

In May 2017, Netflix said it would add an extra warning at the start of the series , on top of warnings appearing before the episodes that depicted rape and Hannah’s suicide. “While many of our members find the show to be a valuable driver for starting important conversation with their families, we have also heard concern from those who feel the series should carry additional advisories,” Netflix said in a statement at the time.

The issue returned in April, when a study published in the Journal of the American Academy of Child and Adolescent Psychiatry found that suicide rates spiked among boys aged 10 to 17 in the month after the release of the first season. That month, April 2017, had the highest overall suicide rate for boys in that age group for the past five years, the study found.