While vivid dreams may be appealing to those who fuel their nighttime dreams with positive experiences throughout the day, that may not be the case for people who give into negative thoughts or consume social media content that can leave them emotionally vulnerable.
“One of the theories regarding the function of dreams is that dreaming permits the emotional content of experiences to be processed,” London Bridge Hospital consultant neurologist Dr. Guy Leschziner told Bustle.
As such, it's not uncommon for TikToks that initiate strong emotional responses to make them pop up during REM, said Dr. Leschziner, who is also clinical lead at Guy's Hospital Sleep Disorders Center.
“Essentially, if you have experienced an event with very strong emotion associated with it, dreaming facilitates the deposition of the memory of that event.”
That stays true for watching TikTok videos that can be deemed emotional for one reason or another, argues Bustle.