What is Blue Light and how does it affect us?

Devices like tablets, laptops, computers, televisions, and smartphones help many of us to communicate, do our research, and become a source of our entertainment, among others.

But don’t you know that long exposure to these gadgets is harmful to our health especially to our eyes?

Electronic devices produce blue light on their screens. It is part of a light spectrum and is visible to the human eye.

Image from Freepik

The illumination of blue light can enhance feelings of well being, that is why many people are attracted to the glow of their gadgets.

Natural blue light has several health benefits like boosting alertness and increasing a person’s overall feeling and well-being.

But according to a study, too much exposure to the blue light emitting from digital devices increases the risk of damaging one’s vision and having poor health.

Studies have shown that too much exposure to blue light from electronic devices causes eye strain and sleeplessness.

One of the leading risks from blue light exposure is it suppresses the release of melatonin; the hormone that tells us when it is time to sleep.

Image from Freepik

People who spend more time looking at digital screens have less hours of sleep which may lead to poor health, dizziness in the morning, and the feeling of weariness.

Researchers have suggested to spend no more than two hours of screen time, spend at least an hour of physical activity each day, and to take at least seven to eight hours of sleep.

You can also follow these tips in order to protect yourself from the damaging effect of the blue light:

  • Avoid using gadgets or watching television two to three hours before bedtime.
  • Dim the lights of the screen of all devices to reduce the amount of blue light.
Image from Freepik
  • Expose yourself to lots of bright light during the day, it will help boost your mood and alertness and your ability to sleep at night.
  • Instead of using digital devices, read some books or engage in physical activities for a healthier mind and body.

Overall, these tips are so easy. We just need to practice more discipline.