Fighting the ‘freshman 15’

By Jan Jarvis

Brandy Roane

 

College students typically blame too much fast food for the famous freshman 15.

But research from UNT Health Science Center suggests that weight gain in college has as much to do with when you go to bed as what you eat for dinner

Fluctuating sleep patterns, a common condition of college life, predicted weight gain during the first semester of college, said Brandy M. Roane, PhD., Assistant Professor of Internal Medicine and lead author of a study in the Journal of Behavioral Sleep Medicine.

As part of the study, 132 freshmen at Brown University self-reported their sleep habits in a sleep diary. The data was analyzed and compared to their weight gain.

The average bedtime was 1:30 a.m. and the average wake time was 9 a.m. But the bed times and wake times of freshmen men varied far more than for women, shifting daily by an average of 2 hours, 37 minutes.

“Boys who had the greatest fluctuations in sleep duration were the most likely to gain weight,” Dr. Roane said. “And even though the weight gain was less than the ‘Freshmen 15,’ for the girls it was enough to change their clothing size and for boys their waist size by an inch. So the clothes these students brought to school with them wouldn’t fit by the end of the semester.”

In analyzing the data, Dr. Roane considered that college students have wildly fluctuating schedules and girls tend to get up earlier, due to the “primp factor.” She also noted that all of the students lived on campus and walked to classes, but this daily activity did not prevent weight gain.

The students gained an average of a half-pound a week in the course of the nine-week study.

“The average adult gains one pound a year,” Dr. Roane said. “These guys gained 5 pounds in nine weeks.”

To reduce the risk of gaining weight, students might want to keep their sleeping schedule more structured, Dr. Roane said.

“Pick a time to wake up and stay with it,” she said. “If students could reduce the variability in their sleep it is likely they could reduce their weight gain, too.”

Recent News

Untitled Design
  • Community
|May 14, 2025

Pushed from an early age: TCOM student is graduating and ready to take care of his family and patients

The routine for Kory Howell was this: wakes up at 6 a.m., works out, goes to class dressed for work already until 2 p.m., works until 9:30 p.m., does homework until after 11 p.m., then starts over the next day. This wasn’t medical school, mind you. Howell, only 17 years old, was living in Midland ...
Nteri Team At Unthsc Photographed On November 28, 2023.
  • Community
|May 13, 2025

NTERI and Ophthalmology Interest Group launch collaborative partnership

The North Texas Eye Research Institute, a distinguished research hub at The University of North Texas Health Science Center at Fort Worth, is pleased to announce a new collaboration with the university’s Ophthalmology Interest Group The OIG is a vibrant student organization composed of dedicated m...
Heads Up Day, Wednesday, February 12, 2020. Photo By Joyce Marshall
  • Community
|May 9, 2025

TCOM’s Academy of Program Coordinators hosting first Annual Education Conference

Rising up to fill a significant need, the Texas College of Osteopathic Medicine’s Academy for Program Coordinators is holding its first annual education conference on the campus of The University of North Texas Health Science Center at Fort Worth. Led by TCOM’s Graduate Medical Education Institu...
Picture1
  • Community
|May 8, 2025

Dr. Allen Solenberg Jr. joins College of Public Health

The College of Public Health at The University of North Texas Health Science Center at Fort Worth recently welcomed Dr. Allen Solenberg Jr. as the newest health administration and health policy associate professor. Solenberg served in the military for more than 20 years and is no strang...