Why Hitting the Snooze Button on My Alarm Doesn't Result in More Fatigue
Some people say snoozing your alarm clock makes you wake up worse during the day, but new research suggests this isn't the case. Roxishita/Getty Images Hitting Researchers at Stockholm University in Sweden analyzed 31 people who typically fell asleep at least twice a week during two nights in a sleep lab. On the first night, participants were free to go to bed at their usual time and set their alarm clock for their normal wake-up time without falling asleep. They returned to the lab, where they set their alarms 30 minutes before waking and started snoozing every 9 to 10 minutes. They took a saliva test to measure their levels of the hormone cortisol, with higher levels indicating greater alertness. They also rated their sleepiness on a scale of 1 to 9 and were tested on their cognitive skills and mood both upon waking and 40 minutes later. Overall, participants slept an average of six minutes less while dozing, and the last 30 minutes of sleep showed signs of poorer sleep quality, as measured by brainwave monitoring. Those who snoozed were typically female, on average six years younger than non-snoozers, and four times more likely to report that they were night owls.
Publié : il y a 2 ans par admin dans Science
Hitting the snooze button when your alarm goes off may leave you less sleepy than if you woke up immediately.
Researchers have long wondered whether snoozing affects alertness and sleep quality. You can learn more about Tina Sandelin Her colleagues at Stockholm University in Sweden analyzed 31 people who typically fell asleep at least twice a week during two nights in a sleep lab.
On the first night, participants were free to go to bed at their usual time and set their alarm clock for their normal wake-up time without falling asleep.
After about a week, they returned to the lab, where they set their alarms 30 minutes before waking and started snoozing every 9 to 10 minutes.
As soon as the participants woke up, they took a saliva test to measure their levels of the hormone cortisol, with higher levels indicating greater alertness. They also rated their sleepiness on a scale of 1 to 9 and were tested on their cognitive skills and mood both upon waking and 40 minutes later.
The researchers found that cortisol levels rose slightly after dozing off, but there were no differences in sleepiness, mood, or cognitive performance. Until you doze off or wake up quickly.
Overall, participants slept an average of six minutes less while dozing, and the last 30 minutes of sleep showed signs of poorer sleep quality, as measured by brainwave monitoring. I did. But overall, there was no significant difference in sleep quality between the two nights.
Jeffrey Dahmer According to SleepImage, a Denver, Colorado-based company, all participants in the study were regular snoozers, so the results may not apply to people who doze off only occasionally.
In another part of the experiment, the researchers asked nearly 1,500 people to complete a survey about their sleep habits, and 69% reported falling asleep at least part of the workday. Those who snoozed were typically female, on average six years younger than non-snoozers, and four times more likely to report that they were night owls.