Any computer can overheat, but laptops are compact and can easily overheat when the processor is stressed for long periods of time. Typically when a computer becomes too hot it will simply shut off without warning to prevent any physical damage to the computer.
Overheating is a phenomenon of rising temperatures in an electrical circuit. Overheating causes damage to the circuit components and can cause fire, explosion, and injury. Damage caused by overheating is usually irreversible; the only way to repair it is to replace some components.