It helps if you know 14 nm fabrication isn't really 14 nm. The biggest culprits are electrolytic capacitors and the lipo batteries but the batteries are far awa

It helps if you know 14 nm fabrication isn't really 14 nm. The biggest culprits are electrolytic capacitors and the lipo batteries but the batteries are far away and the other components are cooled by the air headed into the fan so neither will actually reach anywhere near the temperature of the CPUs. Apple also doesn't skimp on components like this especially when it's a core and obvious part of optimizing for noise so I wouldn't expect it to have an appreciable impact on the lifespan of the device.