A glowing smartphone kept at the bedside all through the night could do more than interfere with your beauty sleep – it could leave you fatter, researchers have cautioned. Our bodies require pitch-black darkness to whip up the right levels of a hormone that helps to regulate the conversion of food and drink into energy. Even the ambient light from street lamps hamper the release of melatonin and stop us from burning food as efficiently.
However scientists assert short-wavelength blue light, emitted by some devices when they are charging, badly disrupt the sleep – and as a consequence our metabolism. Even if it is not bright enough to illuminate a room, it still disrupts our bodies, they opined. A group of scientists at the University of Granada in Spain found that injections of melatonin helped fight away obesity and diabetes in rats by helping to regulate their systems. Now experts at Manchester University are probing how synchronizing sleep patterns could possibly help diabetic patients, a disease commonly brought on by obesity.
Dr Simon Kyle, a sleep researcher at the university, stated: ‘Many people are right now interested in this given that as a 24-hour society, lack of sleep is common, and we are making ourselves vulnerable to artificial light at night.’ ‘We are focusing on how variation in sleep-wake pattern may be linked to the onset of diabetes and obesity and if, when you make the timing of sleep better you can also have a positive effect on conditions like diabetes and obesity.’ ‘Plenty of research is there to point out that we are meant to sleep at night when darkness descends and melatonin climbs and when the sun arises the melatonin is restricted by the sun. This light-dark cycle is good for our bodies to foresee alterations in the environment.’
‘So if you start cutting back on sleep, or subject yourself to light at the wrong time late into night, it disrupts melatonin secretion and possibly cause alterations in metabolism.’ ‘Blue light cause the most damage as it keeps the mind buzzing,’ he added. Dr Kyle recommend switching off smartphones, tablets and desktop computers some hours prior to sleep time to cut back exposure to artificial light.
HOW USING GADGETS AT NIGHT INCREASES HUNGER
Using a computer or smartphone at night can leave your fatter, research found. The study discovered a connection between blue light exposure – blue light emitted by smartphones and tablets – raised hunger. Hunger levels rise for several hours and even after eating a meal if we expose ourselves to the light. Results of the US study indicate that blue-enriched light exposure, raised hunger that started 15 minutes after light onset and remained around two hours after the meal.