your brain turns the right side off. the side which is used to think analiticly, and the left side fully activates to produce the alph waves

Actually, that would be the left hemisphere.

You're right about going into a trance-like state, though. While watching television, you are very suseptible to advertising. You burn more calories sleeping!

It's possible some of these people are defficient in certain vitamins and/or minerals.

if they arent bothering to revise why would the exams bother them?

Mabye the guilt of not studying and worrying about their marks is bothering them.

I wouldn't worry about it until your GCSE's after that the people who didn't give a damn in school can then look forward to a healthy job in safeway stacking shielfs for the rest of there lives, whist the rest of you who actually cared look forward to A levels.

I aggree with cheesegoduk, shen I went up from GCSE ot A-Levels, we lost a load of people, but they didn't want to work at all, they needed to get a kick up the arse to wake them up or end up as a shelf-stacker for life, I have an AS physics exam soon, and was revising like fury over the weekend. I needed to do it, so I got my head down and did it.