Over the last decade, smartphones have become commonplace. Today, 95 percent of American teenagers have a supercomputer in their pocket. Jonathan Haidt, Jean Twenge, and others have brought necessary attention to the likelihood that smartphones and social media are partly to blame for the teenage mental health epidemic gripping the nation. It's…

Objective: This study assessed the feasibility of capturing smartphone based digital phenotyping data in college students during the COVID-19 pandemic with the goal of understanding how digital biomarkers of behavior correlate with mental health. Participants: Participants were 100 students enrolled in 4-year universities. Methods: Each…

Objective: The current study examined the feasibility and acceptability of using the commercially available Jawbone UP accelerometer and associated smartphone application, or "app," to promote physical activity and sleep among college-aged African American females. Methods: Data were drawn from a larger randomized controlled trial, and…