What Are The Main Causes Of Handphone Addiction?

What Are The Main Causes Of Handphone Addiction? Preoccupation with smartphone. Usage when feeling anxious or depressed. Wasting time with excessive use. Causing relationship or job criticisms. Tolerance. Failed attempts to curb usage. Withdrawal symptoms. Feeling required to use it more and more to achieve the same desired effect. How addictive are phones? The percentage