During the coronavirus disease 2019 (COVID-19) public health emergency, college students participating in a study reported lower activity levels, sleep disruptions, and the share reporting depression rose from 32% the year before to 61%. Their activity levels dropped from an average of 10,000 steps per day in the two semesters prior to the COVID-19 public health emergency to an average of 4,600 steps per day. Sleep increased by 25 to 30 minutes per night, time spent socializing declined by more than half (less than 30 minutes per day), and screen time more than doubled to five . . .