The other is how hot should your internal components run? Apple says you should only use a Mac when the ambient temperature-the temperature around you-is in the range of 50☏ to 95☏ (10° to 35☌) and 95 percent or lower humidity. If it doesn’t power down, you may be running it to close to its maximum capability and putting a lot of additional wear in the process on components that might fail later during other seasons. An iPhone or iPad will warn you when it detects it’s too hot and shut down, while a Mac may simply suddenly power off. People can be water cooled and no current Mac offers that option- though some have tried. While people are at the greatest risk from high temperatures, your Mac may be more fragile. Waves of extreme heat have already passed across the United States, Europe, and other parts of the world so far this mid-2021.