Processor throttling is a technique used in computers and devices to manage heat and power consumption. When a processor, or CPU, becomes too hot or reaches its power limits, it reduces its speed or performance to cool down. This helps prevent damage and ensures the device operates safely. Throttling can occur during intensive tasks, such as gaming or video editing, where the CPU works harder and generates more heat. By lowering its clock speed, the CPU can maintain a stable temperature, prolonging the lifespan of the device and improving overall efficiency.