# A need for an ever increasing amount of time on the internet to achieve satisfaction or a dissatisfaction with the continued use of the same amount of time on the internet. # Two or more withdrawal symptoms developing within days, weeks, or up to a month after a reduction or cessation of internet use. These include distress or impairment of social, personal, or occupational functioning such that there is psychological or psychomotor agitation such as anxiety, restlessness, irritability, trembling, tremors, voluntary or involuntary typing movements of the fingers, obsessive thinking, fantasies, or dreams about the internet. # Internet engagement to relieve or avoid withdrawal symptoms. # Internet often accessed more often or for longer periods of time than was intended. # A significant amount of time is spent in activities related to internet use (for example, internet surfing). # Important social, occupational, or recreational activities eliminated or reduced due to internet use. # R...