Artificial light has become an essential part of life for humans. It helps us to extend our productive hours, making us more efficient in our work. However, its abundant use in modern society has led to various health concerns, including mental health.

What is artificial light?

Artificial light is any light source that is created by humans to serve various purposes, such as lighting up streets, workplaces, and homes.

Unlike natural light, the intensity and wavelength of artificial light can be controlled and adjusted according to the need.

How does artificial light affect our mental health?

The overuse of artificial light has a profound impact on our mental wellbeing. Here are some of the negative effects of excess artificial light exposure on mental health:.

1. Disrupts sleep cycle

Excessive exposure to artificial light, particularly blue light, has been linked to sleep disorders such as insomnia. The artificial blue light disrupts the production of melatonin, a hormone that regulates sleep-wake cycles.

Exposure to artificial light late at night can confuse the body’s biological clock and lead to severe sleep deprivation.

2. Increases the risk of depression and mood disorders

Research has shown that artificial light can impact the circadian rhythm and lead to serotonin depletion. Serotonin is a neurotransmitter that plays a vital role in regulating mood, appetite, and sleep.

The depletion of this neurotransmitter can lead to depression and mood disorders. Studies have also shown that depression rates are higher among individuals who work night shifts or have excessive exposure to artificial light.

3. Causes eye strain and headaches

Constant exposure to artificial light can cause eye strain, dry eyes, and headaches, especially if the light source is too bright or harsh.

The blue light emitted by electronic devices, such as smartphones and laptops, can cause digital eye strain, leading to headaches and blurred vision.

4. Disrupts cognitive performance

Studies have shown that exposure to artificial light can impact cognitive performance and cause a decline in memory and attention span.

Artificial light can lead to fatigue, irritability, and decreased alertness, impacting an individual’s cognitive abilities, problem-solving skills, and decision-making abilities.

5. Leads to hormonal imbalances

Artificial light can also impact the production and regulation of hormones. Melatonin, the hormone that regulates sleep-wake cycles, can be disrupted by artificial light exposure, leading to hormonal imbalances.

Exposure to artificial light can also impact other hormones such as cortisol, which can lead to conditions such as anxiety and stress.

6. Impacts children’s mental health

Exposure to artificial light can impact the mental wellbeing of children.

Children have a higher susceptibility to artificial light’s impact on sleep and circadian rhythms, which can lead to behavioural and learning difficulties, attention deficit disorders, and mood disorders.

How can we mitigate the impact of excess artificial light exposure on mental health?

Here are some ways we can mitigate the negative impact of excess artificial light exposure on mental health:.

1. Limit exposure to artificial light

Limit exposure to artificial light sources such as electronic devices before bedtime, especially blue light emitting devices.

It is recommended that individuals avoid using electronic devices before bed and instead opt for a relaxing activity such as reading a book.

2. Use dimmer and warmer lights

Using dimmer and warmer lights, especially in the bedroom, can simulate the natural light conditions that the body needs for proper sleep. Avoid using bright light sources at night, especially in the bedroom.

3. Take frequent breaks

If you work in an environment with artificial light, take frequent breaks to avoid eye strain and headaches. Look away from the screen and focus on a distant object to give your eyes a rest.

4. Incorporate natural light

Incorporate natural light into your daily routine. Take breaks outside, go for a walk, get some sunlight, and try to spend time in natural light sources to help regulate your body’s circadian rhythm.

Conclusion

Excess artificial light exposure can have a severe impact on our mental health, leading to various health concerns such as sleep disorders, hormonal imbalances, and mood disorders.

As technology continues to evolve, it is essential to be aware of the impact that artificial light can have on our mental health and take necessary precautions to mitigate its negative effects.