What is “bypass brain?” It is a term loosely used by cardiac surgeons and cardiologists to explain the issue many patients have after open heart surgery. The symptoms are: fuzzy brain, inability to concentrate, confusion, “brain fog” and lack of desire and energy to complete tasks. How would I know all of this – I have it. I am told to be patient. It takes time. It takes the body and brain quite some time to heal back to its original way.