News / Science & Technology

Study: Astronauts Sleep Deprived, Use Sleeping Pills

Astronaut Mike Hopkins, Expedition 38 Flight Engineer, is shown in this handout photo provided by NASA as he participates in the second of two spacewalks which took place on December 24, 2013, released on December 27, 2013.
Astronaut Mike Hopkins, Expedition 38 Flight Engineer, is shown in this handout photo provided by NASA as he participates in the second of two spacewalks which took place on December 24, 2013, released on December 27, 2013.

Related Articles

Rosetta Probe Meets Comet After Decade-Long Chase

Rosetta spacecraft will escort Comet 67P for the next year and observe it as it heads towards the sun

Video NASA Probing Secrets of Van Allen Radiation Belt

Scientists say better understanding of Van Allen belt will help us prepare for potential surprises from our own sun
VOA News

Despite the allure of floating in a weightless environment, outer space may not be the best place to take a snooze, according to new research.

Over the course of a 10-year study of astronauts’ sleeping patterns, researchers at the Brigham and Women’s Hospital (BWH) Division of Sleep and Circadian Disorders, Harvard Medical School, and the University of Colorado found the astronauts “suffer considerable sleep deficiency in the weeks leading up to and during space flight.”

“Sleep deficiency is pervasive among crew members,” stated Laura K. Barger, PhD, associate physiologist in the BWH Division of Sleep and Circadian Disorders, and lead study author in a statement. “It’s clear that more effective measures are needed to promote adequate sleep in crew members, both during training and space flight, as sleep deficiency has been associated with performance decrements in numerous laboratory and field-based studies.”

Researchers tallied the sleeping patterns of 85 astronauts over more than 4,000 nights on Earth and more than 4,200 nights in space during 80 space shuttle missions and missions to the International Space Station.

The conclusion of the research was that “more effective countermeasures to promote sleep during space flight are needed in order to optimize human performance.”

While the U.S. space agency NASA allocates 8.5 hours of sleep per night during missions, the study revealed astronauts were only sleeping an average of less than 6 hours on shuttle missions and just over 6 hours in ISS missions.

Very few space sleep sessions lasted over 7 hours, researchers found.

But it wasn’t just in space where the astronauts slept poorly. Sleep deficiency began as much as three months before launch, with astronauts sleeping just 6.5 hours a night during pre-mission training.

The study revealed that astronauts were aware of being sleep deprived and turned to sleeping pills for help.

Three out of four ISS crew members reported using medication at some point during the mission, while roughly the same amount of shuttle crew members reported using medication more than half the nights they were in space.

Barger called the high rate of sleeping pill use concerning.

“The ability for a crew member to optimally perform if awakened from sleep by an emergency alarm may be jeopardized by the use of sleep-promoting pharmaceuticals,” said Barger, adding that most sleeping pills come with warnings about engaging in hazardous occupations while under the influence.

“This consideration is especially important because all crew members on a given mission may be under the influence of a sleep promoting medication at the same time,” she said.

You May Like

Turkey's Controversial Reform Bill Giving Investors Jitters

Homeland security reform bill will give police new powers in search, seizure, detention and arrests, while restricting the rights of suspects, their attorneys More

Audio Slideshow In Kenyan Prison, Good Grades Are Path to Freedom

Some inmates who get high marks could see their sentences commuted to non-custodial status More

'Rumble in the Jungle' Turns 40

'The Champ' knocked Foreman out to regain crown he had lost 7 years earlier when US government accused him of draft-dodging and boxing officials revoked his license More

This forum has been closed.
Comment Sorting
Comments
     
by: yataro from: Japan
August 10, 2014 10:01 AM
Sleeping is really sensitive behavior.
When we change the sleeping place, for example traveling, it is a little hard to sleep.
By the way,I wander if the sleep promoting pills work well, because most of the astronauts can't sleep well with sleep promoting pills in this article.
so I would say that they don't have to care for jeopardizing.

Featured Videos

Your JavaScript is turned off or you have an old version of Adobe's Flash Player. Get the latest Flash player.
Victorious Secularists Face Challenge to Form Government in Tunisiai
X
Henry Ridgwell
October 30, 2014 11:39 PM
Official results from Tunisia show the Islamist Ennahda party has failed to win the second free election since the so-called "Arab Spring" uprising in 2011. Ennahda, which handed power to a government of technocrats pending the elections, lost out to the secular party Nidaa Tounes. Henry Ridgwell reports from London that the relatively peaceful poll offers some hope in a volatile region.
Video

Video Victorious Secularists Face Challenge to Form Government in Tunisia

Official results from Tunisia show the Islamist Ennahda party has failed to win the second free election since the so-called "Arab Spring" uprising in 2011. Ennahda, which handed power to a government of technocrats pending the elections, lost out to the secular party Nidaa Tounes. Henry Ridgwell reports from London that the relatively peaceful poll offers some hope in a volatile region.
Video

Video Africa Tells its Story Through Fashion

In Africa, Fashion Week is a riot of colors, shapes, patterns and fabrics - against the backdrop of its ongoing struggle between nature and its fast-growing urban edge. How do these ideas translate into needle and thread? VOA’s Anita Powell visited this year’s Mercedes Benz Fashion Week Africa in Johannesburg to find out.
Video

Video Smugglers Offer Cheap Passage From Turkey to Syria

Smugglers in Turkey offer a relatively cheap passage across the border into Syria. Ankara has stepped up efforts to stem the flow of foreign fighters who want to join Islamic State militants fighting for control of the Syrian border city of Kobani. But porous borders and border guards who can be bribed make illegal border crossings quite easy. Zlatica Hoke has more.
Video

Video China Political Meeting Seeks to Improve Rule of Law

China’s communist leaders will host a top level political meeting this week, called the Fourth Plenum, and for the first time in the party’s history, rule of law will be a key item on the agenda. Analysts and Chinese media reports say the meetings could see the approval of long-awaited measures aimed at giving courts more independence and include steps to enhance an already aggressive and high-reaching anti-corruption drive. VOA’s Bill Ide has more from Beijing.
Video

Video After Decades of Pressure, Luxembourg Drops Bank Secrecy Rules

European Union finance ministers have reached a breakthrough agreement that will make it more difficult for tax cheats to hide their money. The new legislation, which had been blocked for years by countries with a reputation as tax havens, was approved last week after Luxembourg and Austria agreed to lift their vetoes. But as Mil Arcega reports, it doesn’t mean tax cheats have run out of places to keep their money hidden.
Video

Video Kobani Refugees Welcome, Turkey Criticizes, US Airdrop

Residents of Kobani in northern Syria have welcomed the airdrop of weapons, ammunition and medicine to Kurdish militia who are resisting the seizure of their city by Islamic State militants. The Turkish government, however, has criticized the operation. VOA’s Scott Bobb reports from southeastern Turkey, across the border from Kobani.

All About America

AppleAndroid