Which of the following are behaviors of someone who may have an Internet addiction?

Spending hours several nights each week playing online games is indicative of Internet addiction because it reflects a pattern of excessive engagement with online activities to the detriment of other aspects of life. This behavior often involves prioritizing time spent gaming over social interactions, responsibilities, and even physical well-being. Individuals who may struggle with Internet addiction often lose track of time, leading to a lack of balance in their daily lives.

The other options highlight symptoms or behaviors that could also be associated with Internet addiction, such as sleeping disorders and fatigue, as well as a loss of interest in other activities and hobbies. These behaviors demonstrate negative impacts on health and lifestyle. Having more than one email account may suggest a high level of engagement with online platforms, but it does not directly indicate addiction as it may simply reflect a need for better organization or multiple purposes online.