In recent years, there
has been a remarkable surge in the use of the internet, video games, streaming
television, music, films, and social media. A significant number of individuals
are now internet users worldwide, accompanied by a notable rise in social media
participants and mobile gamers. The increasing reliance on electronic devices
has led to a dramatic rise in daily screen time, which has resulted in numerous
negative effects on both physical and mental health!
This article delves into
the various aspects of screen addiction and the consequences of spending
excessive time in front of screens.
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Screen Addiction / The Silent Threat to Your Physical and Mental |
What are Health Risks of Too Much Screen Time?
You may be reflecting on
whether you are spending too many hours in front of screens, especially after
noticing certain effects. It is clear that prolonged screen time poses various
health risks, impacting both your physical and mental well-being.
Impact on Sleep –
Interacting with digital
media is believed to disrupt sleep patterns. The time spent on screens can take
away from moments that should be dedicated to physical activities, which are
essential for achieving a restful night's sleep.
Usage
Timing –
Exposure to the blue and
bright light emitted by screens in the evening and at night can inhibit
melatonin production, alter its secretion timing, and disturb the circadian
rhythm. Furthermore, extended texting after lights out is likely to reduce the
sleep cycles of high school students, leading to chronic fatigue and diminished
academic performance.
Cholesterol –
Playing video games is
the only form of sedentary behaviour associated with a reduction in HDL
cholesterol among obese adolescents. Spending more than three hours in front of
a screen correlates with a significant decrease in HDL cholesterol levels. The
factors that explain this connection include increased consumption of heavily
marketed foods, diminished control over food intake while using screens, and a
lack of physical activity.
Cardiovascular system –
It is asserted that
sedentary lifestyles elevate the risk of obesity, dysfunction of high-density
lipoprotein (HDL), and hypertension, which are the three main risk factors for
cardiovascular morbidity.
Obesity
–
Insufficient sleep, a
lack of physical activity, and exposure to excessive advertising across various
media adversely influence the dietary choices of the younger population,
thereby exacerbating the connection between screen time and obesity.
Blood Pressure & Diabetes-
Constriction of retinal
arterioles may act as a potential marker for future cardiovascular problems.
Research shows that children who spend more time outdoors tend to have larger
retinal arterioles than those who are less active outside. Insulin resistance
arises when cells fail to effectively use insulin. This condition is crucial in
the pathophysiology of diabetes and increases the likelihood of cardiovascular
diseases.
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| More screen time enhance blood pressure |
Type
and Nature of Media –
Unlike televisions, small
touchscreen devices can emit sound notifications during the night, potentially
interrupting or diminishing sleep quality. Teens who spend long hours online
typically get less sleep, have later bedtimes and wake times, and report
increased daytime drowsiness. Those who engage with social media at night are
particularly vulnerable to experiencing poor sleep quality, especially if they
are emotionally invested in the content.
Location –
The possession of media
devices by teenagers correlates with earlier bedtimes and shorter sleep
duration, coupled with a notable resistance to going to bed, which leads to
heightened sleep disturbances, especially when these devices are located in the
bedroom.
Physical
health concerns –
Carpal tunnel syndrome is
a common problem among working adults who spend a significant portion of their
time in front of a computer. However, the prevalence of this condition does not
mean it is normal. Symptoms of carpal tunnel syndrome may include pain or
numbness in the hands, fingers, and wrists, which can make routine tasks such
as typing or even holding a coffee cup more difficult.
Sympathetic activation –
Chronic sympathetic
arousal may present risks to cardiovascular health. Increased sympathetic
arousal has been observed in adolescents and young adults engaged in addictive
online activities. Researchers have suggested that this heightened arousal
could be a key factor contributing to sleep disturbances.
Depression and suicidal behaviour –
Depression particularly
that which is instigated by social media, is becoming an increasingly prevalent
issue, especially among the current generation. Individuals who do not monitor
their social media usage may easily become trapped in a cycle of jealousy,
envy, self-doubt, and low self-esteem. Therefore, it is suggested that a
mediating factor linking night-time screen time to depressive symptoms and
suicidal thoughts in adolescents is insufficient sleep.
Neuropsychological
Effects –
Numerous studies have
shown that any form of internet addiction results in structural changes in the
brain, particularly within the frontal lobe. These structural alterations are
linked to a decreased ability to filter out irrelevant information and a
diminished capacity to manage challenging and complex tasks. The frontal lobe
is essential in regulating overly aggressive and inappropriate behaviours, as
well as in adapting to environmental changes.
A decrease in academic performance –
Findings from a cohort
study indicate that overall screen time, as well as the duration spent on
smartphones, is significantly associated with academic stress levels and
increases the likelihood of experiencing abnormal academic stress. One
potential explanation for this could be the dependence on mobile phones and
other electronic devices for homework completion.
ADHD
(attention deficit hyperactivity disorder) –
It has been observed that
excessive use of digital devices is prevalent among younger children and
teenagers who have either been diagnosed with ADHD or are perceived to be
facing attention difficulties or impulsivity.
Electromagnetic Radiation –
The occurrence of sleep
during the night corresponds with the secretion of melatonin by the pineal
gland, indicating a notable relationship between these two phenomena. While
sleep is not absolutely essential for the nocturnal production of melatonin, it
is certainly vital for the night hours to be fully realized.
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| More screen time spent may suffer your eye strain |
Eye
health:
If you spend an excessive
amount of time in front of screens, you may suffer from eye strain. The
potential repercussions of prolonged screen exposure include:
- Eye
fatigue - Extended usage can result in tired eyes, leading to
double vision, headaches, and challenges with concentration.
- Dry
and irritated eyes - Focusing on a screen reduces your blinking
rate, which can cause dryness and irritation. It is crucial to prevent dry
eyes, as they can adversely affect your eye health and result in blurred
vision.
- Loss
of focus flexibility - Although this usually occurs with age,
excessive screen time can impede our capacity to swiftly adjust our vision for
varying distances.
- Near-sightedness
- Keeping children indoors for long durations due to screen time can have
enduring effects on their eye health. Access to natural daylight is essential
for the proper development of children's eyes. Research shows that children who
spend more time indoors face a higher risk of developing near-sightedness.
- Retinal
damage - Digital screens emit blue light, which can
penetrate the inner layer of the retina. Studies indicate that blue light may
be detrimental to light-sensitive cells in the retina, potentially resulting in
early age-related macular degeneration and vision loss.
The Psychology Behind Screen Addiction:
Similar to gambling and
substance use disorders, cell phone usage exhibits many characteristics that
characterize an addictive behaviour.
- Instant
gratification – Few research indicated that screen time
affects children's brains also disclosed that part of the appeal of smartphones
lies in the instant gratification we derive from scrolling. Our brains receive
a surge of dopamine when we engage with our phones, creating a reward loop. The
more we interact with these devices and platforms, the more we experience that
exhilarating rush.
- Scrolling
effect - Developers design our phones and the applications
we download to seize our attention and promote extended use. You may have found
yourself endlessly scrolling through certain social media applications. This
occurs because, theoretically, you can scroll indefinitely on these platforms,
and the content is never fully depleted.
- FOMO
and highlight reels - In particular, teenagers are
susceptible to what is known as the fear of missing out, or FOMO. Social media
platforms often act as a highlight reel of our lives. It is easy to become
ensnared in the belief that everyone else is having fun without you or that
they lead more exciting or fulfilling lives. Although this is not the case,
such beliefs can be detrimental if left unaddressed.
How to prevent screen addiction habits?
1. Productivity timers and screen time restrictions-
Many smartphones are
equipped with features that track screen time and provide alerts when you
surpass your daily usage limit. Setting one for yourself can act as a useful
reminder to set your phone aside. Moreover, you can adjust your app
notifications to reduce the temptation to check your phone each time an alert
goes off. The "Do Not Disturb" feature found on certain smartphones
enables you to select when to silence all notifications.
2. No
screen time before 8 a.m. or after 8 p.m.-
Limiting smartphone use
is especially beneficial at the start and end of your day to avoid interfering
with sleep and activities unrelated to work or education. Allocate specific
times during the day for using your phone for both work and personal reasons.
Some people discover that keeping their phones in a separate room while they
sleep helps them refrain from scrolling in the morning and at night.
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| Spend more time with family minimise screen time |
3. Family time: Disconnect to connect-
A highly effective
strategy to minimize screen time and strengthen your relationships is to limit
device usage during important family bonding times. This might mean placing
your phones in another room during meals and gathering around the kitchen table
instead of in front of the television.
4. To
promote improved sleep-
Reduce light exposure
to your body during the late evening, as it may interfere with your sleep
cycle. It is advisable to dim the lights in your home a few hours prior to
bedtime. Lower the brightness on your electronic devices or enable night-time
mode if it is available.
If possible, make your
bedroom a screen-free zone. When it is necessary to use devices, consider
wearing blue light glasses. These can assist in reducing blue light exposure to
your eyes while using your phone or computer.
5. Not All Screen Time Is Harmful-
Screen time can also
present beneficial aspects. Interacting with phones, televisions, and computers
enables you to connect with family and friends, unwind, and complete tasks.
Indeed, there are benefits to using our phones and playing video games, as long
as it is done in moderation. However, as with all things, moderation is
crucial.
6. Further
Tips on Cutting Back Screen Time:
When it pertains to
children, the AACAP provides various recommendations for regulating the amount
of screen time a child experiences. These recommendations include:
- Ensure that all screens are turned off during family meals and outings.
- Implement parental controls.
- Avoid using screens as replacements for pacifiers, babysitters, or to calm tantrums.
- Turn off screens and remove them from bedrooms 30 to 60 minutes before bedtime.
- Until the age of 18 months, limit screen use to video calls with an adult (for example, with a parent who is not present).
- For children aged 18 to 24 months, restrict screen time to educational content that is viewed alongside a caregiver.
- For children aged 2 to 5 years, limit non-educational screen time to about one hour on weekdays and three hours on weekends.
- For those aged 6 and older, encourage healthy habits and restrict screen-related activities.
As adults, it can be
difficult to decrease cell phone or computer usage, particularly when
contemporary life requires their use for work. Nevertheless, it is possible to
reduce our dependence on these devices for entertainment or to pass the time.
This is especially important if you have experienced any of the negative effects
outlined in this guide.
Conclusion:
This article explores the
relationships between screen time and the utilization of digital devices,
especially during night-time, as well as the effects on sleep quality, the
origins of anxiety, feelings of depression, and issues related to self-esteem,
in addition to the physical repercussions on individuals. It illustrates that
excessive Internet use has distinct and detrimental effects, such as sleep deprivation, increased depression, absenteeism from school, and familial
conflicts.
However, from a public
health perspective, it is recommended to reduce screen time overall,
particularly smartphone use, to alleviate and prevent numerous related health
issues.




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