It's been over a decade since celebrities, brands and everday people were posting videos of themselves on the internet being doused with buckets of ice to raise awareness about ALS. Driving the news: Students from the University of South Carolina revived the trend last month in support of mental health.

Over a decade after the viral "ALS Ice Bucket Challenge," these college students sparked a new trend in support of mental health. Reactions are mixed.

The Ice Bucket Challenge brought awareness to ALS in 2014. It's back a decade later with a new cause. Here's why, where to donate and the rules.