Without active cooling, the Raspberry Pi 4 will thermal throttle even during moderate loads. Learn how to fix the issue by creating a Raspberry Pi 4 case with fan.
If your old MacBook starts to feel hot with its fans whirring loudly, here are several things you can do to make it cool down and fix the overheating issue.
If you have an overheating laptop, and nothing you do seem to fix it, follow this detailed guide to clean up your laptop internals, and fix the overheating issue.