Sleeping with light on linked to obesity
Herald, The (Scotland)
SLEEPING in a room with too much light increases the risk of obesity in women, research has shown.
Greater exposure to light at night raised Body Mass Index (BMI) and waist size in more than 113,000 women taking part in the British study, scientists found.
The Breakthrough Generations Study followed the women for 40 years in an attempt to identify root causes of breast cancer. Obesity is a known risk factor for the disease.
"The associations we saw in our study between light exposure at night and obesity are very intriguing. We cannot yet tell at this stage what the reason for the associations is, but the results open up an interesting direction for research."
The study was funded by