The blue light emitted from gadgets makes it harder to fall in and stay asleep. ‘Screens of gadgets such as TV, computers, laptops, tablets, mobile phones release blue light, which suppresses the production of melatonin hormone, vital in controlling the wake-sleep cycle (also known as circadian rhythm) of the body,’ says Dr Shaimaa Mashal, Specialist - Internal Medicine at Bareen International Hospital in MBZ City, Abu Dhabi. ‘The devices stimulate the brain and trigger emotional and hormonal responses, such as increased adrenaline, which keeps the brain alert.
To minimise the impact of technology on sleep, turn off all devices, especially those that emit blue light, before going to sleep. Also, limit exposure to glowing monitors 1-2 hours before bedtime.