Ответы и объяснения

2012-10-13T13:51:37+04:00

Firstly Computers cause problems with eyes. 

Secondly they are harmful for little children. 

Also a long work at the computer harms the nervous sistem. 

Computers cause problems with a spine, too. 

I am sure that people have not to spend a lot of time in front of the computers, if they want to be healthy.