New Delhi, Nov. 18 -- Heat is the silent villain for every device you use for many reasons; hear us out. Anyone who has tried to game on a laptop that feels like a stovetop or tried recording video on a phone that cuts performance halfway through a shoot knows how quickly heat turns convenience into frustration. So it's no wonder cooling fans whether they're built-in, clip-on, or in the form of laptop cooling pads are billed as must-haves. But do they truly help or are we buying into a myth?

The heart of every laptop is its internal cooling system. Those small high-speed fans and tightly arranged heat pipes are the first and most powerful shield against overheating. When your system is clean and vents are clear, internal fans keep the CP...