It seems that most of us aren't explicitly aware when our brain is "tired" (as opposed to our muscles). But we have to decide that we are too tired to make dec

It seems that most of us aren't explicitly aware when our brain is "tired" (as opposed to our muscles). But we have to decide that we are too tired to make decisions. In some cases, that may be non-trivial. I don't mean to sound cynical, just curious.