It's quite common knowledge that heat is bad for electronics. That constantly high temperature decreases the expected lifetime of computer parts even if they are not overheating per se.
If, for example, there's dust insulating a component in a PC, "cutting it off" from the usual airflow. What is it that experiences higher "wear" on higher temperatures? I've seen liquid capacitors mentioned as parts failing faster the higher their operating temperture is, because of pressure building and resulting leaking. Is that correct? But surely, there are many things else? Could you name some?