Screen Addiction

Screen addiction is a term now used for compulsive use of digital devices including mobile phones, tablets laptops, desktop PCs etc for internet surfing, watching pornography or for gaming purposes. Its health effects  are similar to those of any substance or drug addiction.

Addiction refers to a complex and chronic psychological and physiological phenomenon characterized by an individual’s inability to control their engagement in a particular substance or behavior, despite negative consequences. It often involves the compulsive pursuit and use of substances (such as drugs or alcohol) or engagement in behaviors (such as gambling, gaming, or shopping) that provide temporary pleasure or relief but ultimately lead to harmful effects on physical health, mental well-being, relationships, and overall functioning.


Signs of screen addiction

Screen addiction, also known as technology addiction or digital addiction, refers to an excessive and compulsive use of digital devices such as smartphones, tablets, computers, and gaming consoles. Here are some signs and symptoms that might indicate screen addiction:

Loss of Track of Time:

Spending more time on screens than intended and losing track of time while using digital devices.

Neglecting Responsibilities:

Neglecting important responsibilities, such as work, school, chores, or personal relationships, due to excessive screen use.

Withdrawal Symptoms:

Feeling irritable, anxious, or restless when unable to access screens or when attempting to cut down screen time.

Failed Attempts to Cut Down:

Repeatedly trying to reduce screen time or set limits on usage, but being unsuccessful in controlling the behavior.


Constantly thinking about screens and feeling a strong urge to use them even in inappropriate situations, such as during conversations or in social settings.

Neglecting Basic Needs:

Skipping meals, neglecting personal hygiene, or losing sleep due to excessive screen use.

Escalating Usage:

Needing to use screens for increasing amounts of time to achieve the same level of satisfaction or stimulation.

Loss of Interest in Other Activities:

Losing interest in previously enjoyed activities, hobbies, or social interactions in favor of spending time on screens.

Impaired Social Relationships:

Strained relationships with family members, friends, or partners due to neglect, disinterest, or distractions caused by screen use.

Physical Health Issues:

Experiencing physical health issues like eye strain, headaches, back and neck pain, sleep disturbances, and sedentary behavior due to prolonged screen time.

Reduced Academic or Work Performance:

Decline in academic or work performance due to spending excessive time on screens instead of focusing on tasks.

Secrecy and Deception:

Hiding or downplaying the extent of screen usage from family, friends, or colleagues, or feeling guilty about the amount of time spent on screens.

Loss of Control:

Feeling unable to control or reduce screen usage despite being aware of its negative impact on various aspects of life.

Mood Changes:

Experiencing mood swings, irritability, anxiety, or depression related to screen use patterns.

It’s important to note that the occasional and moderate use of digital devices is a normal part of modern life. However, when screen usage starts interfering with daily responsibilities, relationships, and well-being, it might indicate the presence of an addiction. If you or someone you know is showing signs of screen addiction, it’s advisable to seek professional help. Mental health professionals, therapists, and counselors can provide guidance and support in managing and overcoming digital addiction.


Role of Dopamine in Addiction

Dopamine is a neurotransmitter, a chemical messenger in the brain that plays a crucial role in various functions, including motivation, reward, pleasure, and reinforcement of behaviors. It is often referred to as the “feel-good” neurotransmitter because of its involvement in creating positive feelings and sensations. There are two well-known dopaminergic pathways in the brain: the mesolimbic pathway and the nigrostriatal pathway. The mesolimbic pathway is a key dopaminergic pathway that plays a central role in the brain’s reward system and motivation. It originates in the ventral tegmental area (VTA), a region deep within the midbrain, and projects to the nucleus accumbens and other areas in the limbic system. This pathway is associated with feelings of pleasure, reinforcement of behaviors, and the development of addictive behaviors.

When something pleasurable or rewarding is experienced, such as eating tasty food or engaging in pleasurable activities, the VTA releases dopamine into the nucleus accumbens and other limbic regions. This release of dopamine reinforces the behavior and creates a sense of pleasure. In the context of addiction, this pathway can become dysregulated, contributing to the intense pleasure associated with addictive substances or behaviors.

Addiction involves a complex interplay of psychological, neurological, and behavioral factors. Dopamine is central to the brain’s reward system, which reinforces behaviors that are pleasurable or beneficial for survival. Here’s how dopamine works in relation to addiction:

Reward Pathway Activation:

When you engage in activities that are pleasurable or rewarding, such as eating delicious food, exercising, or socializing, your brain releases dopamine. This release of dopamine in certain brain regions, such as the nucleus accumbens, creates feelings of pleasure and reinforces the behavior, making you more likely to repeat it.

Dopamine Surge:

Certain substances (like drugs) and behaviors (like gambling, gaming, or compulsive internet use) can lead to a surge of dopamine release that is much more intense and rapid than what occurs naturally. This flood of dopamine contributes to a heightened sense of euphoria and pleasure.

Associative Learning:

Dopamine is involved in associative learning, where your brain starts to link specific cues or situations with the release of dopamine. This forms the basis of cravings and the conditioned responses seen in addiction. For example, if a person regularly uses drugs in a specific environment, that environment itself can trigger the brain to anticipate the reward (dopamine release) and initiate cravings.

Tolerance and Desensitization:

With continued exposure to addictive substances or behaviors, the brain can become desensitized to the effects of dopamine. This leads to a reduced response to the same level of stimulation, requiring higher amounts of the substance or behavior to achieve the same pleasurable feeling. This phenomenon is known as tolerance.

Withdrawal and Cravings:

When the brain becomes accustomed to elevated dopamine levels, abruptly reducing or stopping the addictive substance or behavior can lead to a dopamine deficit. This can result in withdrawal symptoms, including feelings of depression, anxiety, irritability, and intense cravings. The brain craves the dopamine surge that was previously associated with the addictive behavior.

Compulsive Behavior:

Over time, the brain’s reward system can become dysregulated in people with addiction. The pursuit of the addictive substance or behavior can become compulsive, as the brain places a strong emphasis on obtaining the dopamine release, even at the expense of other important aspects of life.


Other Neurotransmitters implicated in addiction

Addiction has a complex mechanism and in addition to dopamine several other neurotransmitters are also implicated in addiction, contributing to the rewarding and reinforcing effects of substances and behaviors that lead to addiction. Some of the key neurotransmitters involved include:


Serotonin is another neurotransmitter that plays a role in addiction, particularly in relation to mood-altering substances. Drugs that affect serotonin levels, such as MDMA (ecstasy), can lead to feelings of emotional closeness, empathy, and euphoria. The serotonin system is also closely tied to mood regulation, and imbalances can contribute to mood disorders that may influence addiction risk.

GABA (Gamma-Aminobutyric Acid):

GABA is an inhibitory neurotransmitter that helps regulate neural excitability. It plays a role in reducing anxiety and promoting relaxation. Drugs like alcohol and benzodiazepines increase GABA activity, leading to sedative effects. Over time, the brain may adapt to these substances, and their withdrawal can lead to increased excitability and anxiety, contributing to addiction.


Glutamate is the brain’s main excitatory neurotransmitter. It’s involved in learning, memory, and reward pathways. Drugs of abuse can affect glutamate signaling, leading to changes in neural plasticity and reinforcing the behaviors associated with addiction.


Endorphins are neurotransmitters that act as natural painkillers and can produce feelings of pleasure. They are released during activities like exercise and can be associated with the “runner’s high.” Many addictive substances, such as opioids, can lead to an increase in endorphin release, contributing to their addictive properties.


Norepinephrine is involved in the body’s stress response and arousal. It can contribute to the heightened alertness and energy often experienced with certain drugs, such as stimulants like cocaine and amphetamines.

It’s important to note that neurotransmitters including dopamine offer just one of many factors contributing to addiction. Genetic predisposition, environmental influences, social factors, and psychological vulnerabilities also play significant roles. Addiction is a complex condition that affects both brain chemistry and behavior, and it often requires a comprehensive and individualized approach to treatment and recovery.

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