LOS ANGELES, CA. (THECOUNT) — Pop star Ariana Grande posted what she calls a “terrifying” image of a recent brain scan to “bring awareness” to the dangers of post-traumatic stress disorder.

Grande, 25, shared the photo Thursday on Instagram. The image compared a healthy brain, a brain with PTSD and her brain.

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The scan of the healthy brain looked dark while the brain with PTSD was highlighted in a few places. Grande’s brain also showed a few areas that were highlighted.

“Guys…..,” she wrote on IG. “My brain:”

“Not a joke,” she captioned the screenshot.

It was not immediately clear when Grande underwent a brain scan.

On May 22, 2017, a bomber blew himself up at the Manchester Arena as fans were leaving the “Thank U, Next” singer’s show leaving 22 people dead. Last year, the singer opened up about living with PTSD following the bombing, reports FoxNews. She also suffered the loss of her ex-BF, Mac Miller, who committed suicide shortly after the couple broke up. Many on social media blamed Grande for Miller’s depression over the break up which some say may have led to him taking his own life.