Use of Smart phone is good or bad to the human live

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As we know every coin have two side in the sense the mobile also have it's own advantages and disadvantages. As per my understanding advantages of using smart phone 1. Easy to access any information on the phone. 2. Quickest mean of communication 3. You can enjoy music, play movies and games 4. Store the data so you did not require to maintain the dairies 5. Saving of cost as it doesn't require any cables for network As per my understanding disadvantages of using smart phone 1. If you using smart phone more than the required then you will be gifted with glasses on your eyes 2. Increase dependency so you forgot to remember as I really don't know the numbers of my nearest ones 3. Increase in laziness no physical playing of games as you will become engaged in playing mobile games it causes imbalance of body and might be the reason for diabetes and blood pressure problems. 4. Increase the risk of loneliness as because you will avoid personally meeting the peoples and gets busy with the mobile and mobile. 5. Signals catching in the mobile may cause for heart attack problems. 6. You will forgot to enjoy your personal life as you have addicted to mobile and you will never meet the people face to face. Please share and comment if any one think I am wrong or any other device is ther which will helps us to override the above dis advantages.