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A new study involving 204 cohabiting couples found that poor sleep can negatively impact one’s diet and even affect their partner's eating habits. Participants completed questionnaires about sleep and diet for three months, revealing that those with sleep-deprived partners reported less confidence in maintaining a healthy diet and made fewer efforts to eat well. Women showed modest improvements in their dietary habits during the study period, but researchers emphasize the need for objective measures to confirm these findings, suggesting joint efforts could improve both partners' sleep and eating behaviors.
Written by the local model on 2026-09-16,
using this article's own text rather than the other coverage of the
same event (that is the story summary below).
Story summary
A recent study involving 204 cohabiting couples found that individuals with partners who suffer from poor sleep are less likely to maintain healthy eating habits themselves. The participants completed questionnaires about their diet and sleep patterns over a period of three months, along with diaries tracking their efforts towards healthy eating. According to the lead author Jean-Philippe Gouin, people whose partners have trouble sleeping feel less confident in their ability to adhere to a nutritious diet and consequently make less effort to do so. This effect is reciprocal; even well-rested individuals reported similar difficulties when their partner had poor sleep habits. The research highlights how shared living conditions can impact not just one’s own health but also influence the lifestyle choices of those around them, suggesting that improving sleep quality could benefit overall dietary behavior in couples.
Written for “Sleep Deprivation Affects Diet” on 2026-09-17,
grounded in this article and the 0 other(s) covering the same event.
Why this leaning score
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answer rather than a gap: a match report or a rescue can be warmly
or critically written without being left or right, and scoring it
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No political leaning scored for article 13624 · logged 2026-09-16
Poor sleep can throw a wrench into healthy eating habits, making it hard to stick to a nutritious diet.
asserted
it → throw → diet
And if you share a bed with a partner who sleeps poorly, their sleep could be messing with your diet, too, according to a new study.
uncertain
sleep → share → study
Researchers followed 204 cohabiting couples over three months, asking them to complete questionnaires about their sleep and diet, along with diaries tracking their healthy eating efforts.
asserted
Researchers → follow → efforts
Those who reported poor sleep said they made less effort to eat well and felt less confident in their ability to maintain healthy eating habits.
asserted
they → report → habits
Their well-rested partners reported the same struggles.
asserted
partners → rest → struggles
“People with a sleep-deprived partner were essentially saying they have less confidence in their ability to follow a healthy diet, so they engage in less effort to do so,” corresponding author Jean-Philippe Gouin said in a press release.
asserted
Gouin → deprive → release
While we’re more likely to choose a partner who share our lifestyles and habits — whether that’s someone who likes to cook, exercise or prefers an early bedtime over a late night.
asserted
who → ’re → night
And sharing a bed with a partner who either has poor sleep hygiene or disruptive sleep behaviors like snoring affects quality of sleep for both people.
asserted
who → share → people
Despite getting adequate rest, people who reported sleeping well in the study were more likely to be exposed to calorie-dense food, such as chips, cookies, candy and other ultra-processed foods because of their partner.
asserted
who → get → partner
At least one person in each couple was overweight or obese and actively trying to improve their diet or physical activity.
asserted
person → try → diet
Nearly 96% of participants reported they were trying to change their eating habits.
asserted
they → report → habits
Over the course of the study, sleep quality didn’t change significantly.
asserted
quality → change → study
Diet quality, however, improved modestly, with women reporting healthier eating habits and making more serious attempts to stick to a diet.
asserted
women → improve → diet
Still, the researchers caution that the findings don’t prove poor sleep habits directly cause unhealthy eating habits.
asserted
habits → caution → habits
The participants self-reported their sleep and eating patterns, which means that future studies can use objective measures to track these factors.
asserted
studies → report → factors
In the meantime, this study could highlight new ways to improve diet, especially through joint-effort treatments that improve one partner’s sleep to help maintain healthy eating in both people.
uncertain
that → highlight → people
Additionally, Gouin says social contexts need to be taken into consideration when looking at poor eating, including the influence a partner’s behavior has over the other.
asserted
behavior → say → other
“If we want to make changes that are long-lasting, both partners need to work together to change the home and food environment so that it is easier to maintain healthier habits over time,” Gouin said.
asserted
Gouin → want → time
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