Daily mobile phone usage effect on mental health and social well-being

Hi, I'm a second-year student of Public Health. Please take some time and answer the questions! Your answers will be really helpful for my english presentation. Questionnaire is anonymous. 

Thank you!

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Gender

How old are you?

How much time do you spend on your mobile phone? (per day)

Do you feel any negative symptoms after telephone usage?

What kind of symptoms do you feel?

What do you use your mobile phone for?

What do you think: Does your telephone has a negative impact on your communication with people?

Do you feel addicted to your mobile phone?

Where do you keep your telephone during the night?