Connect with us

Hi, what are you looking for?

Jewish Business News

Health

Sleeping with artificial light at night linke with weight gain in women

Eliminating light while sleeping could reduce obesity

Scientists at the National Institutes of Health suggests that sleeping with the television on or any source of artificial light in the room may be a risk factor for gaining weight or developing obesity.

The study is the first to find a connection between artificial light in the bedroom while sleeping and weight gain in women. The study did not include men.

Please help us out :
Will you offer us a hand? Every gift, regardless of size, fuels our future.
Your critical contribution enables us to maintain our independence from shareholders or wealthy owners, allowing us to keep up reporting without bias. It means we can continue to make Jewish Business News available to everyone.
You can support us for as little as $1 via PayPal at office@jewishbusinessnews.com.
Thank you.

However, cutting off lights at night could reduce women’s risk of becoming obese.

The research published in JAMA Internal Medicine,

The researchers used questionnaire data from 43,722 women aged 35-74 years, in the Sister Study, cohort research that examines risk factors for breast cancer and other diseases.

The women were not shift workers, daytime sleepers, or pregnant when the study began. They had no history of cardiovascular disease or cancer.

The scientists take measurements at baseline and follow-up five years later, including body mass index, weight, height, waist and hip circumference, as well as self-reported information on weight.

The study’s questionnaire asked the participant whether they slept with the television on in the room, or any other artificial light inside or outside of the room.

The scientists analyzed the information, and they were able to comper obesity between women who reported sleeping in dark rooms and weight gain in women exposed to artificial light at night.

The results show that using a small nightlight was not associated with weight gain, whereas women who slept with light or television on were 17% more likely to have gained 11 pounds,(approximately 5 kilograms) or more, over the follow-up period. Having light coming from outside the room show modest in results.

The team wondered if not getting enough rest is a factor in the research’s results.

“Although poor sleep by itself was associated with obesity and weight gain, it did not explain the associations between exposure to artificial light while sleeping and weight,” said author Dale Sandler, Ph.D., chief of the Epidemiology Branch at the National Institute of Environmental Health Sciences (NIEHS), part of NIH.

Co-author Chandra Jackson, Ph.D., head of the NIEHS Social and Environmental Determinants of Health Equity Group, notes that for many who live in urban environments, the light at night is more common and should be considered. Light sources such as streetlights, neon signs, storefront can suppress the sleep hormone melatonin and the natural 24-hour light-dark cycle of human biorhythm.

The research authors acknowledge that other confounding factors could explain the connection between light at night, and weight gain.

Newsletter



Advertisement

You May Also Like

World News

In the 15th Nov 2015 edition of Israel’s good news, the highlights include:   ·         A new Israeli treatment brings hope to relapsed leukemia...

Entertainment

The Movie The Professional is what made Natalie Portman a Lolita.

Travel

After two decades without a rating system in Israel, at the end of 2012 an international tender for hotel rating was published.  Invited to place bids...

VC, Investments

You may not become a millionaire, but there is a lot to learn from George Soros.