My notebook doesn't turn on

Laptops have a bad habbit of over heating and currupting the hdd ...thus not allowing post to appear and boot up. Also the battery also over heating and burning out not allowing it to recharge . basicly laptops need extra cooling if used for long periods , plenty of cool air flow around the base .
My best advise would be to take to your local dealer and ask if they can replace or test the major componants .