"Hi, my name is Cori Ritchey and I was nominated for the ALS Ice Bucket Challenge by Megan Ritchey. I nominate [insert three names of high school friends I haven't spoken to in 10 years]. You have 24 hours." And then my sister proceeds to dump the whole bucket of ice water over my head.

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.