Can a phone catch on fire while charging? And if it can, how to avoid it? How to stop your phone overheating? The very first smartphone appeared back in 1992, when IBM introduced the Simon Personal Communicator. The device cost about $1,000, could only send emails and run simple apps, and weighed as much as a hammer!

Gradually, the giant dinosaur smartphone evolved and turned into a sleek modern gadget that accompanies us even when we're asleep! Smartphones have taken over – getting rid of our alarm clocks, maps, computers, gaming consoles, cookbooks, and fitness instructors! But do you know what mysteries and possible hazards your smartphone hides? For example, why you shouldn't charge your phone on the bed?

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