The fact that the average smartphone usage time for Koreans is 5 hours, ranking 5th in the world, is truly astonishing.

Five hours a day means a significant amount of time spent on smartphones each week. This is a testament to the important role smartphones play in modern life, but if this usage time becomes too long, the risk of smartphone over-dependence increases.

In the United States, smartphone addiction refers to excessive use that impacts daily life. Especially as smartphones infiltrate various aspects of daily life through social media, messaging, various apps, and video services, the situation is becoming increasingly serious.

There are several symptoms of smartphone addiction, the most representative being the inability to put the phone down. For example, even when doing other tasks, one tends to check their phone repeatedly, and there is a tendency to react immediately when a text or notification comes in.

As smartphone addiction becomes more serious, a new term 'Homo Addictus' has emerged. This term refers to a new type of human addicted to smartphones, emphasizing how much smartphones occupy our daily lives. As people handle almost everything through smartphones, they find it increasingly difficult to distinguish between reality and the virtual world, becoming so dependent that life without a smartphone seems impossible.

Additionally, the term 'dopamine farming' is gaining attention. This refers to the phenomenon where people seek dopamine through their smartphones. Dopamine is a neurotransmitter released when we receive rewards, making us feel happiness and satisfaction. Smartphones stimulate dopamine through SNS notifications, messages, games, etc., leading people to check their phones constantly, which can result in increased addiction.

Moreover, there can be significant anxiety. When one is away from their phone, they may feel anxious, thinking, "What if something happens?" If this becomes excessive, it can lead to discomfort when not holding the phone and a habit of constantly checking it. Ultimately, not using the phone can lead to anxiety and stress.

Smartphone usage can also affect sleep quality. Excessive smartphone use can reduce sleep time, and especially using the phone late at night can lead to sleep disorders. The blue light emitted from smartphone screens can interfere with sleep.

Furthermore, it can impact social relationships. Being too absorbed in smartphones can reduce conversations with real people, leading to neglect of relationships with family and friends. In such cases, the lack of emotional exchange in face-to-face interactions can lead to feelings of loneliness or isolation.

To address these situations, it is essential to limit smartphone usage time and consciously reduce smartphone use through methods like digital detox. Spending certain times of the day without a smartphone or turning off notifications to enhance focus can be helpful. While smartphones are indeed useful, it is time to find a balance to avoid excessive dependence.