5 Negative Health Impacts of Poor Lighting You Must Know

Inadequate lighting, commonly referred to as poor lighting, is when the lighting is not sufficient to see clearly or illuminate an environment properly. Poor lighting can negatively affect our physical and mental health in various ways.

People may have poor lighting in their surroundings for different reasons. For example, some people may choose to have poor lighting due to energy conservation, while others may lack knowledge of the importance of proper lighting. On the other hand, some people may opt for poor lighting for aesthetic purposes.

However, this article aims to discuss the various health implications of poor lighting and provide practical solutions to improve the lighting in homes and workplaces.

5 Negative Health Impacts of Poor Lighting

1. Mental Health Strain

Apart from affecting our physical well-being, inadequate lighting can also harm our mental health. Research indicates that exposure to natural light can enhance our mood, reduce stress, and improve our cognitive abilities. Conversely, exposure to inadequate or harsh lighting can lead to negative emotions such as anxiety, depression, and irritability.

To promote mental wellness, it is crucial to ensure that the lighting in our living spaces and work environments is natural and soothing. Furthermore, getting enough sunlight during the day is also essential for our mental well-being.

2. Eye Strain

Poor lighting can cause eye strain, resulting in symptoms like headaches, blurred vision, and dry eyes. People who spend long hours working on computers or electronic devices are particularly susceptible to this problem, as the blue light emitted by these screens can be harsh on the eyes.

It’s important to ensure that the lighting in your work area is adequate and to take regular breaks to rest your eyes and prevent eye fatigue.

3. Reduced Visibility

Inadequate lighting can also have a detrimental impact on our visibility, making it challenging to discern objects clearly. This can result in several safety risks, especially in areas that necessitate movement. For instance, if you are navigating through a poorly-lit corridor or staircase, you may not be able to spot any obstructions in your path, elevating the chances of slips and falls.

Furthermore, in work settings, poor lighting can make it arduous for employees to perceive the equipment they are operating, heightening the possibility of accidents and physical harm.

5. Sleep Disorders

Poor lighting can disrupt our sleep patterns and contribute to sleep problems like insomnia and other sleep disorders. This is because our body’s sleep-wake cycle, also known as circadian rhythm, is sensitive to light.

When we’re exposed to bright light during the day, our bodies produce less melatonin, a hormone that helps us feel sleepy at night. On the other hand, exposure to dim light at night triggers the production of more melatonin, making it easier for us to fall asleep.

Therefore, it’s important to limit our exposure to bright screens and other sources of artificial light in the evening and ensure that our bedroom is dark and quiet to improve our sleep quality.

Lastly, poor lighting can significantly affect productivity by impeding an individual’s ability to concentrate on their work. Poor lighting can cause eye strain and exhaustion, leading to reduced focus and an inability to complete tasks effectively.

How To Improve Your Lighting

How To Improve Your Lighting

If you want to improve the lighting in your home or workplace, here are a few helpful tips to follow.

  • Firstly, ensure that the lighting in your work area is sufficient, and take regular breaks to rest your eyes.
  • Secondly, limit your exposure to bright screens and other sources of artificial light in the evening, and keep your bedroom dark and quiet to improve your sleep quality.
  • Thirdly, ensure that the lighting in your home or workplace is natural and soothing, and try to get plenty of sunlight during the day.
  • Additionally, you can use light-filtering shades or curtains to minimize glare and harsh light, and use task lighting, such as desk lamps or under-cabinet lights, to provide additional light where needed.


Inadequate lighting can greatly affect our physical and mental health. To safeguard your well-being and enhance your health, it is essential to guarantee that your home or workplace has sufficient and natural lighting.

It is also advisable to take measures to limit exposure to harsh or artificial light. By doing so, you can improve your overall health and well-being.

Obianuju Chukwu
Obianuju Chukwu
She has a degree in pharmacy and has worked in the field as a pharmacist in a hospital. Teaching, blogging, and producing scientific articles are some of her interests. She enjoys writing on various topics relating to health and medicine, including health and beauty-related natural treatments, the nutritional worth of various foods, and mental wellness.

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