Does having on a night light also apply?
A new study by the National Institutes of Health in North Carolina reveals that women, who sleep with the light on are more likely to gain weight than women, who sleep in the dark.
Researcher Dale Sandler says, “A high-calorie diet and sedentary behaviours are the most commonly cited explanations for the obesity epidemic and are the main targets for obesity prevention. However, exposure to artificial light at night (ALAN) may contribute to the obesity pandemic. Evidence from animal studies supports the hypothesis that light exposure at night may have direct effects on melatonin signaling, sleep disruption, and circadian rhythms, which could result in weight gain and obesity. ALAN has been shown to suppress expression of circadian clock genes and, in turn, alter feeding behaviours and lead to weight gain in rodents.”