Mobile phones impact on health

Hello! I'm second year student from Lithuanian University of Health Sciences, public health study program. Please take some time and answer the questions, that is very important for my english presentation! Questionnaire is anonymous. 

Thank you!

Anketos rezultatai yra viešai prieinami

How old are you? ✪

Do you have a mobile phone? ✪

How much time do you spend a day on your mobile phone?

What mostly do you use your mobile phone for?

Do you feel negative symptoms after using a mobile phone for a long time?

What symptoms do you feel?

You don't need to answer this question if before you answered 'no'

How often you use mobile phone before sleep?

Does using phone before sleep affect your sleep?

You don't need to answer this question if before you answered 'never'.

How does using phone affect your sleep?

You don't need to answer this question if before you answered 'no'.