Categories: Health

Sleeping in light bedrooms increases risk of obesity

A new study has found that sleeping in a room with too much light has been linked to an increased risk of obesity.

A team at the Institute of Cancer Research in London found women had larger waistlines if their bedroom was “light enough to see across” at night.

However, they caution there is not enough evidence to advise people to buy thicker curtains or turn off lights.

The study of 113,000 women was published in the American Journal of Epidemiology.

The women were asked to rate the amount of light in their bedrooms at night as:

Sleeping in a room with too much light has been linked to an increased risk of obesity (photo iStockphoto)

  • Light enough to read
  • Light enough to see across the room, but not read
  • Light enough to see your hand in front of you, but not across the room
  • Too dark to see your hand or you wear a mask

Their answers were compared to several measures of obesity. Body Mass Index (BMI), waist-to-hip ratio and waist circumference were all higher in women with lighter rooms.

One possible explanation is that the light is disrupting the body clock, which stems from our evolutionary past when we were active when it was light in the day and resting when it was dark at night.

Light alters mood, physical strength and even the way we process food in a 24-hour cycle.

Artificial light is known to disrupt the body clock by delaying the production of the sleep hormone melatonin.

The study was funded by Breakthrough Breast Cancer and the findings emerged from a long-term study to understand the risk factors for breast cancer. Obesity is known to increase the odds of the disease.

Kathryn R. Bown

Kathryn - Our health specialist likes to share with the readers the latest news from the field. Nobody understands better than her the relation between healthy mind and healthy body.

Recent Posts

Quincy Jones Dead at 91

Quincy Jones, the celebrated musician and producer who worked with Michael Jackson, Frank Sinatra, Ray…

5 hours ago

White House 2024: Voter Fraud Claims Flood Social Media

Misleading allegations, rumours and outright lies about voting and fraud are flooding online spaces in…

2 days ago

Spain: At Least 158 Killed In The Country’s Worst Flooding Disaster

At least 158 people have died in Spain's worst flooding disaster in generations. On October…

4 days ago

Russia Fines Google $20,000,000,000,000,000,000,000,000,000,000,000, Surpassing Global GDP

Google has been fined two undecillion (a two followed by 36 zeroes) roubles by a…

4 days ago

Financing Your Home Remodel: 7 Tips for Success

Embarking on a home remodel is an exciting journey, promising enhanced comfort, increased property value,…

2 weeks ago

Donald Trump Serves Up McDonald’s Fries While Kamala Harris Celebrates 60th Birthday with Church Choir

The US presidential candidates continued to campaign across key swing states on October 20. Footage…

2 weeks ago