KJZZ is a service of Rio Salado College,
and Maricopa Community Colleges

Copyright © 2026 KJZZ/Rio Salado College/MCCCD
Play Live Radio
Next Up:
0:00
0:00
0:00 0:00
Available On Air Stations

University of Arizona gets millions to study peoples' minds at night

person laying in bed with alarm clock in foreground
Getty Images

University of Arizona researchers recently got a multimillion dollar federal grant to study how being awake late at night could impact a person's ability to make decisions.

The five-year study paid for by a $3.8 million grant from the National Institute of Mental Health focuses on the mind-after-midnight hypothesis developed by UA researchers, who say suicides are three to four times more likely to occur between 2 a.m. and 4 a.m.

Their theory is if someone is awake when their brain wants to be asleep, they’re more likely to make impulsive and bad decisions.

Study results will let UA researchers assess how people experience emotional processing, complex decision making and stress late at night.

More Science News

Matthew Casey has won Public Media Journalists Association and Edward R. Murrow awards since he joined KJZZ as a senior field correspondent in 2015.