Almost all of heat issues are maintenance problems.
Whether or not you use your laptop/PC heat problems will happen over time if you do not service it i.e. clean it.
Symptoms of heat problems - noisy fan, laptop feeling hotter than it use it, sluggish programs and in critical heat situations system unexpectly shutting off
How to check for heat problems - download a program like SpeedFan or something similiar. Most Laptops and Motherboards manufactured in the last 15 years have heat sensors on them.
Speedfan will tell you the temperature of your CPU & Hard Drives and Speed of fan(s).
You should test idle (not doing anything) and with load on it (run something that uses alot of processing power)
How to fix -
Clean inside of computer - Clean out Fan and all air vents. DO NOT USE WATER. You can use a can of compressed air to blow out vents and fan. The heat normally melts the dust and it becomes hard for this gunk use alcohol(at least 80%) and soft cloth.
Re-apply thermal paste - This should be done at least every other year as it gets hard over time.Thermal paste is the grey compound between CPU and Heatsink. It will seem to be unimportant but this compound is crucial in removing heat. You can get thermal paste relatively cheap at any computer store it is less than $2 USD. If you are in a jam and can't get thermal paste you can make an alternative that can work for couple month - Tootpaste and vaseline mixture will substitute. I can tell you it 100% works from experience.
The fixes I outlined above are easy do it yourself stuff but taking apart a PC or Laptop could be troublesome if you got no clue what you are doing, especially laptops. You can casue more trouble than you started with. There are loads of youtube videos and help articles that can be found with google to help you.
Of course you can just send it technician to have it done which for some of us is the easiest and safest option.