MYTH: All Blue Light is Bad for You Blue light linked to electronic devices has gotten a bad reputation for being unhealthy and causing damage to our eyes.
Another argument in favor of blue light glasses is that they help you sleep better at night.

However, certain types of blue light are positive and healthy for our bodies. Blue light has been getting blamed for sleep interruption and eye strain. Researchers agree that blue light from LED devices like your smartphone or … Although it is environmentally friendly, blue light can affect your sleep and potentially cause disease. Blue light disrupts your sleep Your body has an internal clock that regulates your circadian rhythm — the 24-hour biological cycle that influences … Contrary to common belief, blue light may not be as disruptive to our sleep patterns as originally thought -- according to scientists.

Until the advent of artificial lighting, the sun was the major source of lighting, and people spent their evenings in (relative) darkness.
Research shows that limiting blue light exposure at night can help improve sleep, especially if a person has trouble sleeping and gets a lot of evening light … A big reason for your mood is the high-intensity blue light coming from the sun. But the facts are that any bright light interferes with sleep, and computers themselves cause eye strain, an …