Studying till late in the night will only fetch poor grades and it is high time to tailor students' class schedules to their natural biological rhythms, stress researchers. Students whose circadian rhythms were out of sync with their class schedules -- say, night owls taking early morning courses -- received lower grades due to "social jet lag," a condition in which peak alertness times are at odds with work, school or other demands.
"We found that the majority of students were being jet-lagged by their class times, which correlated very strongly with decreased academic performance," said study co-lead author Benjamin Smarr from the University of California-Berkeley.
To reach this conclusion, the team tracked the personal daily online activity profiles of nearly 15,000 college students as they logged into campus servers.
After sorting the students into "night owls," "daytime finches" and "morning larks" -- based on their activities on days they were not in class -- researchers compared their class times to their academic outcomes.
In addition to learning deficits, social jet lag has been tied to obesity and excessive alcohol and tobacco use, said the study published in the journal Scientific Reports.
"Our research indicates that if a student can structure a consistent schedule in which class days resemble non-class days, they are more likely to achieve academic success," said study co-lead author Aaron Schirmer, an associate professor of biology at Northeastern Illinois University.
Previous studies have found that older people tend to be active earlier while young adults shift to a later sleep-wake cycle during puberty.
Overall, men stay up later than women, and circadian rhythms shift with the seasons based on natural light.
Finding these patterns reflected in students' login data spurred researchers to investigate whether digital records might also reflect the biological rhythms underlying people's behaviour.
The results suggest that "rather than admonish late students to go to bed earlier, in conflict with their biological rhythms, we should work to individualise education so that learning and classes are structured to take advantage of knowing what time of day a given student will be most capable of learning," Smarr said.
"Different people really do have biologically diverse timing, so there isn't a one-time-fits-all solution for education," he added.
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Ottawa (PTI): Three Indian nationals have been arrested by Canadian police on an anti-extortion patrol and charged after bullets were fired at a home.
Harjot Singh (21), Taranveer Singh (19) and Dayajeet Singh Billing (21) face one count each of discharging a firearm, and all have been remanded in custody until Thursday, the Surrey Police Service (SPS) said in a statement on Monday.
The suspects were arrested by patrol officers after an early morning report of shots fired and a small fire outside a home in Surrey's Crescent Beach neighbourhood, the LakelandToday reported.
On February 1, 2026, the SPS members were patrolling in Surrey’s Crescent Beach neighbourhood when reports came in of shots being fired and a small fire outside a residence near Crescent Road and 132 Street.
The three accused were arrested by SPS officers a short time later, the statement said.
SPS’s Major Crime Section took over the investigation, and the three men have now been charged with Criminal Code offences, it said.
All three have been charged with one count each of discharging a firearm into a place contrary to section 244.2(1)(a) of the Criminal Code.
The investigation is ongoing, and additional charges may be forthcoming. All three have been remanded in custody until February 5, 2026.
The SPS has confirmed they are all foreign nationals and has engaged the Canada Border Services Agency, it said.
One of the suspects suffered injuries, including two black eyes, the media report said.
Surrey police Staff Sgt. Lindsey Houghton said on Monday that the suspect had refused to comply with instructions to get out of the ride-share vehicle and started to "actively resist."
"As we were trained, he was taken to the ground and safely handcuffed," said Houghton.
A second suspect with a black eye was also injured in the arrest after refusing to comply, Houghton said.
The arresting officers were part of Project Assurance, an initiative that patrols neighbourhoods that have been targeted by extortion violence.
Houghton said the Canada Border Services Agency (CBSA) is also involved because the men are foreign nationals, and the trio may face additional charges.
It's not clear if the men are in the country on tourist visas, a study permit, or a work permit, but Houghton said CBSA has started its own investigation into the men's status.
Surrey has seen a number of shootings at homes and businesses over the last several months, but there's been an escalation since the new year.
