TikTok is expanding Manage Topics, a feature that lets you customize how often content in the platform’s top 10 categories surfaces in your feed, like sports, travel, humor, creative arts, and dance.

If you’re old enough to remember Kesha’s “Tik Tok,” you may not be “old” by the standard definition—the song only came out in 2009—but you’re probably still too old to know about ...

“Tik Tok leaned in to targeting dopamine and targeting the brain responds and reward centers,” said Andrea Brock, a Licensed Clinical Social Worker at Thriveworks based out of Dallas, Georgia.

At a TikTok Trends event at SXSW London, the company also revealed the content that's keeping us glued to our screens.