I have a hard time retaining oral information.
My boss (at my other job) will say, I need you to print out a case summary for the Bunbury case, and take out the trash, and feed the chickens, and shave your eyebrows. Five minutes later, all I'll remember is that she asked me to do something. It's actually surprising she hasn't fired me yet. Is my memory getting worse, or is it stress. Or did all my other jobs just require me to do one thing at a time? Don't know, can't remember.
Not all of my memory is bad. I'm excellent at remembering faces. And the other day my boss asked where a certain document was filed, and I was able to remember that. But more than one spoken instruction, and I forget what my name is. The simple solution of course would be to just write down everything she tells me to do. But that would require remembering to write down everything she tells me to do.