@Tanm2021 25 April 2021 more from that month

Do you know why you don't feel sleepy when you use your smartphone? It's because of your blue light emission from your device screen. This blue light fools our brain that It's not night yet. And this results in decreasing release of the hormone called "melatonin". This melatonin controls your " sleep-wake cycle" or "circadian rhythm ". That's why keep you phone away if you want to sleep really❤️.