If you find your Macbook overheat, then there is no need to get paranoid because this is actually due to the design of the Macbook. Unlike other laptops and notebooks, Macbook do not have vents across their fans and this is the reason that heat get trapped inside it resulting into overheating of Macbook.
So, if you are worried due to this heating woes, and looking for a good solution to prevent Macbook overheating then we have some respite for you. We would not be telling you to unscrew your Macbook and tweak its hardware so that you can make its fan move faster.
In fact, we would be using a small tool, namely smcFan Control which would control the speed of the fan. So, when you are making your Macbook work on heavy tasks, you can increase the RPM of the fan and vice versa. This is help you prevent overheating of your Macbook.
The best feature about smcFanControl is the fact that it is safe using it. It would never allow you to set the speed of the fan such that your Macbook gets affected. While you set the speed, it takes care of the Apple standards set by Apple.
If you want test its capability, then try checking the temperature while you are doing any activity. And while doing the same activity, try increasing the speed and check the temperature again. You would see that you Macbook is lot cooler now. So based on the activity, you can set the speed of the fan. Say for an instance that you are watching a HD movie, then speed should be higher.
So, this is how you can prevent Macbook overheating. If you were looking for a solution to make sure you tackle the overheating of you Macbook, then try smcFanControl.