Can you overheat a cpu transistor?

Question

If you keep using a program variable over and over again won't it overheat and wink out. Should you change over to another program variable to give the last one you used a chance to cool off, before using it again?

Answer 1

Overheating can occur if your cooling system fails. Program variables have nothing to do with it. Some programming languages allow the declaration of Register Variables that are not removed even when not in use.

It is also possible to overheat if you go for over clocking but from the initial question I doubt if you would know how to do this.