Anon you receive more blue light from ambient sunlight than monitors or phones. Remember when we learned about white light and how if you shine it into a prism it splits it into the colors? Blue is one of them. White light contains blue light bud.
I do like that snake oil is still alive and well.
>>23560383
Don't listen to them, they're paid actors by Big Insomnia trying to deceive you. The reason your blue sunglasses are so blue is because they are absorbing all the blue light.