'It's like if a vape pen and a cigarette had a baby': a mixed methods study of perceptions and use of IQOS among US young adults.

Young adults' perceptions and use of heated tobacco products (HTPs) are understudied. This mixed methods study analyzed (i) Fall 2020 survey data from 2470 US young adults (meanage = 24.67; 19.

Social distancing and related factors during the COVID-19 pandemic in relation to COVID-19 symptoms and diagnosis and mental health.

Background: Many states, local authorities, organizations, and individuals have taken action to reduce the spread of COVID-19, particularly focused on restricting social interactions. Such actions have raised controversy regarding their implications for the spread of COVID-19 versus mental health.

Methods: We examined correlates of: (1) COVID symptoms and test results (i.