I think it is possible for a person to change personality when he/she gets too attached on technology?
I'm a gamer and I prefer violent gore games when playing on my computer, I think that affected that way I speak and treat others in a more aggressive way and IT's really not a nice change.
The impact of technology to your health is addiction to online games.And there are children that is addicted to online games but then this is not good to their health because they are only facing their gadgets even if it is early at night.