How many hours do you sit before computers?

I usually spend at least 8 hours per day... during sem break or vacation, i could spend 16 hours with eating my food also near my laptop. I do also have snack when i'm watching movie online... ahahah... it seemed that internet really has great impact in my lfe... I just find that i always need to check my emails, friendster account, and especially mylot accounts if there is reply and messages... hmmm