I suspect most people have no idea of the severity of the condition, or that chemo brain is not always a temporary affliction. I dreaded it even for a few months (and was OK) but it's hit and miss. Most people get their hair back, but not everyone - at least not always in a functional way. No-one having chemo needs to be scared more than they usually are, at the outset anyway, but maybe long lasting impacts have to be renamed for what they are - conditions that severely limit your options and capacity, no matter how hard you may try to overcome it and not "just" a chemo side effect. Same with lymphoedema - mine is OK but Brenda's is another limiting factor and is unlikely to spontaneously improve. If you cured something by removing a limb, the disability would be clear and obvious.