Are there any negative effects of using the internet for too long?

i agree with above post , i think pshychicly it could do damage like getting lazy en stuff

I think that there are more mental effects than physical effects through using the internet. You begin to socialize less but you get to learn to love persons that you meet not because of how they look but how they communicate.

Anything done in excess has a negative effect. Where id I hear that eating TOO much veggies is bad? Don't know if that's true, though but hey - I'm no expert. Knowing how powerful the internet is and how imuch it influences our way of life - using the net so much would have its negative effects. Physically, your eyes would be damaged for staring at the computer monitor for too long, you'll develop back problems if you aren't sitting properly for a long period of time..I could go on and on, of course...