laptop -as it’s name-Susceptible to movement and facing different conditions not like computers ,what make it more Susceptible to dirt and dusts, which Disrupt the Cooling system (the fans) because of the Accumulation of dusts.
there is several solutions
clean your laptop
send your laptop to the Maintenance center to clean it (no need to leave it there ,it just take several minutes).
program for speed fan
set a program for Adjusting and increasing processing speed. try this program “speed fan – almico” which has many Features allow it to connect with all the Sensors , also it control the S.M.A.R.T system on the motherboard which Specialized controlling the hard drive.
change the Operating System
if you are using VISTA try to change it to WINDOWS 7 or XP then see the difference not just in heat but also in acting and the Battery consumption
laptop ‘s cooling stage
it is A board has fans pumping air under the device .